Yay Science!

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Yay science!
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 Asura.Azriel
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By Asura.Azriel 2016-06-16 06:53:35  
Candlejack said: »
The World Health Organization removed coffee from it's listing of known carcinogens. YAY, SCIENCE!


/win
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 Valefor.Sehachan
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By Valefor.Sehachan 2016-06-23 17:21:51  
Life continues 4 days after death
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By Garuda.Chanti 2016-06-26 20:52:53  
They are teaching bots to watch TV ....

An MIT Algorithm Predicts the Future by Watching TV
Wired

Quote:
The next time you catch your robot watching sitcoms, don’t assume it’s slacking off. It may be hard at work.

TV shows and video clips can help artificially intelligent systems learn about and anticipate human interactions, according to MIT’s Computer Science and Artificial Intelligence Laboratory. Researchers created an algorithm that analyzes video, then uses what it learns to predict how humans will behave.

Six-hundred hours of clips from shows like The Office and Big Bang Theory let the AI learned to identify high-fives, handshakes, hugs, and kisses. Then it learned what the moments leading to those interactions looked like....
Right... predicting human interactions by watching SITCOMS??!!??

New title: slacker engineers write slacker algorithms for slacker bots.
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 Garuda.Chanti
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By Garuda.Chanti 2016-07-02 18:23:51  
Marijuana Compound Removes Alzheimer’s-Related Protein From Nerve Cells
HuffPo

Basic rundown: THC, the stuff that gets you high by binding to your brain's cannabinoid receptors, reduces beta-amyloid levels and eradicates the inflammatory response to the protein, which prevents nerve cell death.

Looks like I'm safe.
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By fonewear 2016-07-02 18:44:19  
Local potheads rejoice !
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By fonewear 2016-07-02 19:21:25  
Speaking of Science here is how I view it

"Some hold that, owing to the necessity of knowing the primary premises, there is no scientific knowledge. Others think there is, but that all truths are demonstrable. Neither doctrine is either true or a necessary deduction from the premises. The first school, assuming that there is no way of knowing other than by demonstration, maintain that an infinite regress is involved, on the ground that if behind the prior stands no primary, we could not know the posterior through the prior (wherein they are right, for one cannot traverse an infinite series): if on the other hand – they say – the series terminates and there are primary premises, yet these are unknowable because incapable of demonstration, which according to them is the only form of knowledge. And since thus one cannot know the primary premises, knowledge of the conclusions which follow from them is not pure scientific knowledge nor properly knowing at all, but rests on the mere supposition that the premises are true. The other party agree with them as regards knowing, holding that it is only possible by demonstration, but they see no difficulty in holding that all truths are demonstrated, on the ground that demonstration may be circular and reciprocal. Our own doctrine is that not all knowledge is demonstrative: on the contrary, knowledge of the immediate premises is independent of demonstration. (The necessity of this is obvious; for since we must know the prior premises from which the demonstration is drawn, and since the regress must end in immediate truths, those truths must be indemonstrable.) Such, then, is our doctrine, and in addition we maintain that besides scientific knowledge there is its original source which enables us to recognize the definitions"
 Garuda.Chanti
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By Garuda.Chanti 2016-07-02 22:09:32  
That's word salad Fone.

REALLY HIGH CLASS word salad but word salad nonetheless.
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By fonewear 2016-07-03 06:34:52  
Not a fan of Aristotle ?
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By Ragnarok.Zeig 2016-07-03 06:55:06  
Garuda.Chanti said: »
That's word salad Fone.

REALLY HIGH CLASS word salad but word salad nonetheless.
It's not, it's just philosophy. The arguments provided in that paragraph were deep and coherent enough.

Anyone who tries to use to imply that science is useless or to undermine its importance though haven't understood it, and is only fooling himself.
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By fonewear 2016-07-03 06:57:11  
I"m not saying Science is useless but it gets way too much credit compared to Philosophy
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By Garuda.Chanti 2016-07-03 10:25:24  
fonewear said: »
Not a fan of Aristotle ?
I said it was high class word salad....

Ragnarok.Zeig said: »
It's not, it's just philosophy. The arguments provided in that paragraph were deep and coherent enough....
I will give you deep.
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By Garuda.Chanti 2016-07-19 15:14:22  
Yet another cyborg bot.

Researchers use tough sea slug muscles to build a biohybrid robot

The bot can crawl like a turtle, but it's slower than a slug
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By Valefor.Sehachan 2016-07-28 04:31:30  
Natural nose bacteria can kill antibiotic resistant species

Quote:
The human nose harbors not only a deadly enemy — Staphylococcus aureus — but also its natural foe. Scientists have now isolated a compound from that foe that might combat MRSA, the methicillin-resistant strain of S. aureus.

“We didn’t expect to find this. We were just trying to understand the ecology of the nose to understand how S. aureus causes problems,” bacteriologist Andreas Peschel of the University of Tübingen in Germany said at a news briefing July 26 during the EuroScience Open Forum. Investigating the intense interspecies competition in the nose — where microbes fight for space and access to scant sugars and amino acids — might offer a fertile alternative to searching for new drug candidates in soil microbes.

Antibiotic researcher Kim Lewis of Northeastern University in Boston agrees in general that the approach might produce new drug discovery leads. But so far the human microbiome has produced only a handful of potential new antibiotics (including lactocillin). If “the compound they found is membrane-acting, [it] will be useful for topical applications, but not as a systemic antibiotic,” he wrote in an e-mail. And new systemic antibiotics are needed most, he says.

Despite being a relatively nutrient-poor environment, the human nose is home to more than 50 species of bacteria. One of these is S. aureus, a dominant cause of hospital-acquired infections such as MRSA, as well as infections of the blood and heart. But there’s a huge variability in the nasal microbe scene between individuals: while S. aureus is present in the nasal passages of roughly 30 percent of people, the other 70 percent don’t have any sign of it.

Trying to explain this difference led Peschel and colleagues to study “the ecology of the nose.” They suspected that other nasal inhabitants, well-tuned to compete in that harsh niche, might be blocking S. aureus from colonizing the nose in those who don’t carry it.

From nasal secretion samples, the team isolated 90 strains of different Staphylococcus species. Of these, one bacterium, S. lugdunensis, killed S. aureus when the two were grown together in a dish. Introducing a variety of mutations into S. lugdunensis produced a strain that didn’t kill. The missing gene, the team showed, normally produced an antibiotic, which the researchers named lugdunin; it represents the first example of a new class of antibiotic.

Lugdunin was able to fend off MRSA as well as a strain of Enterococcus resistant to the antibiotic vancomycin. Neither bacteria developed resistance. The team also pitted S. lugdunensis against S. aureus in test tube and mouse studies, with S. lugdunensis besting S. aureus. Only 5.9 percent of 187 hospital patients had S. aureus in their noses if they also carried S. lugdunensis, the team found, while S. aureus was present in 34.7 percent of those without S. lugdunensis. Peschel and colleagues also reported the results July 28 in Nature.

Lugdunin cleared up a staph skin infection in mice, but it’s unclear how the compound works. Researchers could not rule out that it damages the cell membrane, which could limit its use in humans to a topical antibiotic. Peschel and coauthor Bernhard Krismer also suggest that the bacterium itself might be a good probiotic, applied nasally, to fend off staph infections in vulnerable hospital patients.
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By Valefor.Sehachan 2016-08-01 10:56:05  
Evolutionary explanation of female orgasm

tldr: it used to be triggered by the male's orgasms, but as we evolved to have a spontaneous ovulation it wasn't needed anymore, the body changed and now not everyone gets there as easily.
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By Ramyrez 2016-08-01 11:07:25  
Valefor.Sehachan said: »
Evolutionary explanation of female orgasm

tldr: it used to be triggered by the male's orgasms, but as we evolved to have a spontaneous ovulation it wasn't needed anymore, the body changed and now not everyone gets there as easily.

Quote:
Others more strongly criticized the new explanation. Two behavioral neuroendocrinologists, Michael Baum from Boston University and Kim Wallen from Emory University in Atlanta, tell Science that Pavlićev and Warner misinterpret some previously published results and do not have the details about the hormonal changes during ovulation and orgasm correct. “Their hypothesis remains a good hypothesis,” Wallen says. “But I’m not very convinced by the data they marshal.”

Lloyds says the work drives home how much more we need to learn about female sexuality in other organisms. Wagner and Pavlićev concede that more data are needed to firm up their theory, though for now they have no plans to follow up themselves. Cohn predicts others will pick up the baton. “Pavlićev and Warner have taken a fascinating, creative, and thoughtful approach to a problem that has been investigated by many but resolved by few,” he says. “I suspect that many investigators will be stimulated to further test the hypotheses raised in this paper.”
Quote:
“I suspect that many investigators will be stimulated to further test the hypotheses raised in this paper.”

I get it!

But for real. Interesting findings and topic.

Some ladies have significant problems achieving the big O. That's unfortunate.

(Some guys too, but their reasons are almost entirely unrelated to the presented reasons here.)
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By Grumpy Cat 2016-08-01 11:13:10  
In the games I play you just hold left click and wiggle the mouse around enough and it happens.
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By Ramyrez 2016-08-01 11:15:29  
Grumpy Cat said: »
In the games I play you just hold left click and wiggle the mouse around enough and it happens.

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 Valefor.Sehachan
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By Valefor.Sehachan 2016-08-05 03:15:16  
Moon Express will be the first private company to get to the moon(2017)

It's a bit long to repost here but it's very interesting so I suggest to take a look. They also want to start mining the moon by 2020 which I think is great.
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By Blazed1979 2016-08-05 03:26:56  
Grumpy Cat said: »
In the games I play you just hold left click and wiggle the mouse around enough and it happens.
I just tap the spacebar rapidly.
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By Garuda.Chanti 2016-08-05 10:20:49  
Valefor.Sehachan said: »
Evolutionary explanation of female orgasm

tldr: it used to be triggered by the male's orgasms, but as we evolved to have a spontaneous ovulation it wasn't needed anymore, the body changed and now not everyone gets there as easily.
Stupid *******.

It was proved long ago to increase pair bonding through the release of certain neurotransmitters.

Pity it doesn't work the same for males.
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By Valefor.Sehachan 2016-08-11 04:42:02  
AI saves woman from rare leukemia

Quote:

IBM's Watson has done everything from winning at Jeopardy to cooking exotic meals, but it appears to have accomplished its greatest feat yet: saving a life. University of Tokyo doctors report that the artificial intelligence diagnosed a 60-year-old woman's rare form of leukemia that had been incorrectly identified months earlier. The analytical machine took just 10 minutes to compare the patient's genetic changes with a database of 20 million cancer research papers, delivering an accurate diagnosis and leading to proper treatment that had proven elusive. Watson has also identified another rare form of leukemia in another patient, the university says.

It'll likely take a long while before Watson and other AI systems are regularly providing advice at hospitals, and it won't be all that useful in situations without readily comparable data. We've asked the school for more details of what happened. However, the diagnoses show just how useful the technology could be in the medical world. Human doctors wouldn't have to spend ages sifting through research to identify an obscure disease, or hope that another hospital can offer insights -- they'd just plug in the right data and start the healing process.
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By Ramyrez 2016-08-11 09:13:46  
Valefor.Sehachan said: »
AI saves woman from rare leukemia

"So it can enjoy killing her itself in its own good time."

#SkyNet

#NeverForget
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By Garuda.Chanti 2016-08-13 13:44:34  
Pioneering chemistry study finds no evidence of a 'chemtrails' conspiracy
Mashable

Of course chemtrail fans will be sure this is part of the cover up.

The abstract in PDF format
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By Valefor.Sehachan 2016-08-13 15:16:45  
Apparently today is lefties day, and I'm lefty so..

Genes that control organs symmetry also control handedness

Quote:
Left- or right-handedness may be determined by the genes that position people’s internal organs.

About 10 percent of people prefer using their left hand. That ratio is found in every population in the world and scientists have long suspected that genetics controls hand preference. But finding the genes has been no simple task, says Chris McManus, a neuropsychologist at University College London who studies handedness but was not involved in the new research.

“There’s no single gene for the direction of handedness. That’s clear,” McManus says. Dozens of genes are probably involved, he says, which means that one person’s left-handedness might be caused by a variant in one gene, while another lefty might carry variants in an entirely different gene.

To find handedness genes, William Brandler, a geneticist at the University of Oxford, and colleagues conducted a statistical sweep of DNA from 3,394 people. Statistical searches such as this are known as genome-wide association studies; scientists often do such studies to uncover genes that contribute to complex diseases or traits such as diabetes and height. The people in this study had taken tests involving moving pegs on a board. The difference in the amount of time they took with one hand versus the other reflected how strongly left- or right-handed they were.

A variant in a gene called PCSK6 was most tightly linked with strong hand preference, the researchers report in the Sept. 12 PLOS Genetics.. The gene has been implicated in handedness before, including in a 2011 study by the same research group. PCSK6 is involved in the asymmetrical positioning of internal organs. The gene plays the same role in organisms from snails to vertebrates.

Brandler, who happens to be a lefty, knew the gene wasn’t the only cause of hand preference, so he and his colleagues looked at other genetic variants that didn’t quite cross the threshold of statistical significance. Many of the genes the team uncovered had previously been shown in studies of mice to be necessary for correctly placing organs such as the heart and liver. Four of the genes when disrupted in mice can cause cilia-related diseases. Cilia are hairlike appendages on cells that act a bit like GPS units and direct many aspects of development of a wide range of species, including humans (SN: 11/03/12, p. 16).

One of the cilia genes, GLI3, also helps build the corpus callosum, a bundle of nerves that connects the two hemispheres of the brain. Some studies have suggested that the structure is bigger in left-handers.

It’s still a mystery how these genes direct handedness, says Larissa Arning, a human geneticist at Ruhr University Bochum in Germany. In addition to genes that direct body plans, she says, the study suggests that many more yet-to-be-discovered genes probably play a role in handedness.

Brandler hopes the study will also help remove some of the stigma of being left-handed. Left-handedness isn’t a character flaw or a sign of being sinister, he says: “It’s an outcome of genetic variation.”
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By Leviathan.Andret 2016-08-13 15:53:21  
Apparently, science is closing in on immortality treatment or probably slowing down aging.

Science is getting to grips with ways to slow ageing. Rejoice, as long as the side-effects can be managed

Quote:
IMAGINE a world in which getting fitted with a new heart, liver or set of kidneys, all grown from your own body cells, was as commonplace as knee and hip replacements are now. Or one in which you celebrated your 94th birthday by running a marathon with your school friends. Imagine, in other words, a world in which ageing had been abolished.

That world is not yet on offer. But a semblance of it might be one day. Senescence, the general dwindling of prowess experienced by all as time takes its toll, is coming under scrutiny from doctors and biologists (see article). Suspending it is not yet on the cards. But slowing it probably is. Average lifespans have risen a lot over the past century, but that was thanks to better food, housing, public health and some medicines. The new increase would be brought about by specific anti-senescence drugs, some of which may already exist.

This, optimists claim, will extend life for many people to today’s ceiling of 120 or so. But it may be just the beginning. In the next phase not just average lifespans but maximum lifespans will rise. If a body part wears out, it will be repaired or replaced altogether. DNA will be optimised for long life. Add in anti-ageing drugs, and centenarians will become two a penny.

Man and superman
To this end, many hopeful repairmen are now setting up shop. Some of them want to upgrade worn-out tissues using stem cells (precursors to other sorts of cell). Such bio-renovation is the basis of an unproven, almost vampiric, treatment in vogue in some circles: transfusion into the old of the blood of the young (see article). The business of growing organs from scratch is also proceeding. At the moment, these “organoids” are small, imperfect and used mainly for drug testing. But that will surely change. Longevity is known to run in families, which suggests that particular varieties of genes prolong life. Some are investigating this, with the thought that modern gene-editing techniques might one day be used to make crucial, life-extending tweaks to the DNA of those who need them.

From an individual’s viewpoint, this all sounds very desirable. For society as a whole, though, it will have profound effects. Most of them will be good, but not all.

One concern is that long life will exacerbate existing social and economic problems. The most immediate challenge will be access to anti-senescence treatment. If longer life is expensive, who gets it first? Already, income is one of the best predictors of lifespan. Widening the gap with treatments inaccessible to the poor might deepen divisions that are already straining democracies.

Will older workers be discriminated against, as now, or will numbers give them the whip hand over the young? Will bosses cling on, stymying the careers of their underlings, or will they grow bored, quit and do something else entirely? And would all those old people cease to consider themselves elderly, retaining youthfully vigorous mental attitudes as well as physical ones—or instead make society more conservative (because old people tend to be)?

A reason for hoping that the elderly would turn out less hidebound is that life itself would be more a series of new beginnings than one single story. Mid-life crises might be not so much about recapturing lost youth as wondering how to make the most of the next half-century.

Retirement would become a more distant option for most, since pension pots would have to be enormous to support their extended lifespans. To this end, the portfolio career would become the rule and education would have to change accordingly. People might go back to school in their 50s to learn how to do something completely different. The physical labourer would surely need a rest. The accountant might become a doctor. The lawyer, a charity worker. Perhaps some will take long breaks between careers and party wildly, in the knowledge that medicine can offer them running repairs.

Boredom, and the need for variety, would alter family life, too. How many will tie the knot in their 20s in the expectation of being with the same person 80 years later? The one-partner life, already on the decline, could become rare, replaced by a series of relationships, each as long as what many today would consider a decent marital stretch. As for reproduction, men’s testes would presumably work indefinitely and, though women’s ovaries are believed to be loaded with a finite number of eggs, technology would surely be able to create new ones. Those who wished to could thus continue to procreate for decades. That, and serial marriage, will make it difficult to keep track of who is related to whom. Families will start to look more like labyrinthine networks. In the world where marriages do not last, women everywhere will be freer to divorce and aged patriarchs will finally lose their hold.

Such speculation is fun, and mostly optimistic. The promise of a longer life, well lived, would round a person out. But this vision of the future depends on one thing—that a long existence is also a healthy one. Humanity must avoid the trap fallen into by Tithonus, a mythical Trojan who was granted eternal life by the gods, but forgot to ask also for eternal youth. Eventually, he withered into a cicada.

Forward to Methuselah
The trap of Tithonus is sprung because bodies have evolved to be throwaway vessels for the carriage of genes from one generation to the next. Biologists have a phrase for it: the disposable soma. It explains not only general senescence, but also why dementia, cancer, cardiovascular problems, arthritis and many other things are guarded against in youth, but crammed into old age once reproduction is done with. These, too, must be treated if a long and healthy life is to become routine. Moreover, even a healthy brain may age badly. An organ evolved to accommodate 70 or 80 years of memories may be unable to cope when asked to store 150 years’ worth.

Yet biological understanding is advancing apace. Greater longevity is within reach—even if actual immortality may not be as close (or as interesting) as some fantasists would like to believe. Be sure to draw up a very long bucket list.

Keep living for a couple more decades and we can all see the retirement age pushed to 100+

Also:

Reconciliation after competition is more a masculine than a feminine trait

Quote:
MEN have a long history of fighting with one another for dominance, but why such duels did not leave tribal unity in tatters and warriors less capable of working together to fend off attacks from predators and hostile clans remains a mystery. One common theory is that men more readily make up after fierce physical conflicts than do women. And an experiment run recently at Harvard University, by Joyce Benenson and Richard Wrangham, and published in Current Biology, suggests this may be true.

Tribal contests like Yanamamo clubbing duels, in which men take turns bashing each other on the head until one surrenders or is knocked out, were not regarded as suitable for the Harvard campus. The researchers speculated, however, that less lethal competitive sports could stand in for such pursuits, given that they are standardised, aggressive and intense confrontations which take place in front of an audience.

To this end, they collected 92 videos of male championship tournaments in tennis, table tennis, badminton and boxing, and 88 videos of female tournaments in these sports. Altogether, athletes from 44 countries were involved. Participants in the sports in question are expected by convention to make (peaceful) physical contact after the competition—by shaking hands after the racket sports or by embracing after boxing. Dr Benenson and Dr Wrangham timed these contacts, which they predicted would last longer in men than in women, and also recorded any spontaneous follow-ups, such as embraces after racket sports, arm-touching and pats on the back, which they predicted would be more common in men than in women.

On both counts they were right. Men made post-match physical contact for longer in all of the sports. In tennis, the male median contact time was 1.4 seconds while the female median was 0.8 seconds. In badminton it was 1.1 seconds for men and 0.8 seconds for women. In table tennis it was 0.6 seconds for men and 0.3 seconds for women. Boxing—the sport closest to real fighting—showed the greatest difference. Males made contact for 6.3 seconds after a bout. Females did so for 2.8 seconds.

Men also engaged in more touching after the handshake or post-boxing embrace. In tennis 42.5% of the matches between men concluded with the winner touching the loser’s arm or body in addition to the handshake, while only 12.5% of women’s matches ended this way. Ping pong showed similar results, with 33% of the male matches involving additional physical contact between the competitors while female matches showed none. (The high net in badminton and the many individuals interacting with fighters after boxing bouts made it impossible to monitor post-handshake contact in those sports.)

These results do not prove the hypothesis Dr Benenson and Dr Wrangham are testing, but they do support it. And such male bonding may go back a long way into the evolutionary past: similar differences between the sexes in post-conflict reconciliation have been seen in chimpanzees. Whether that means women are leaving the field of battle with more of a grudge than that borne by menfolk is a question for another experiment.
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By Valefor.Sehachan 2016-08-13 16:01:38  
That economist article doesn't talk about the actual science of immortality though, which is reversing the degeneration of telomeric tails(which is being studied and the most optimistic studies say it will be obtained within 50ish years).
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By Garuda.Chanti 2016-08-14 10:20:28  
Andret, there is an old saying, "women never forgive, men never forget."

Seems to figure right in with the second article.
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By Garuda.Chanti 2016-08-17 01:39:02  
From Scientific American and not yet paywalled:

Could Medical Cannabis Break the Painkiller Epidemic?

A body of research suggests yes, but scientists are having to fight red tape to study whether medical marijuana could substitute for opioid drugs
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By Ramyrez 2016-08-22 08:24:41  

Marijuana a better pain reliever for men than women


Quote:
The researchers found that men who smoked active marijuana experienced a significant reduction in pain sensitivity, compared with men who smoked the placebo. However, no significant decrease in pain sensitivity was identified among women who smoked active marijuana, compared with women who smoked the placebo.
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By Garuda.Chanti 2016-08-22 09:41:04  
Ramyrez said: »
Marijuana a better pain reliever for men than women

Quote:
The researchers found that men who smoked active marijuana experienced a significant reduction in pain sensitivity, compared with men who smoked the placebo. However, no significant decrease in pain sensitivity was identified among women who smoked active marijuana, compared with women who smoked the placebo.
I really couldn't say Ramy. I've never smoked a placebo.
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