If You Use Cannabis, It Could Take Twice As Much Anesthesia to Sedate You

Like with all drugs we take, there are good and bad effects that come with cannabis. But a new study out Monday suggests that one of these bad side effects could be a strange tolerance to anaesthesia. It found that residents of the US state of Colorado who regularly use cannabis needed up to twice as many powerful sedatives before a procedure. Read More >>

Petting Zoos May Be Chock Full of Superbugs

Those adorably tame goats and other animals you love to touch at your local petting zoo might not be so harmless after all, according to some early research out this weekend. It suggests that many petting zoo animals could harbour and potentially spread dangerous antibiotic-resistant bacteria, including two strains of Escherichia coli that cause foodborne illness and urinary tract infections, respectively. Read More >>

Final Results of NASA Twins Study Show How Scott Kelly Changed After a Year in Space

Last year, various media outlets fumbled their reporting of genuinely interesting research from NASA, one that hoped to start figuring out what happens to our bodies if we live in space for long periods of time. The study was a meticulous comparison of then 50-year-old astronaut Scott Kelly, who spent a year aboard the International Space Station in 2015, and his identical twin brother Mark Kelly, who stayed on Earth. Read More >>

Teeth-Whitening Products Might Be Riskier Than We Thought

Those strips and gels you use to get your teeth as pearly white as possible may come with some previously unknown risks, according to new, preliminary research out this week. It found that the key ingredient in these products – hydrogen peroxide – could be capable of damaging dentin, the second, deeper layer of our teeth that lies beneath the enamel surface. Read More >>

A 99-Year-Old Woman Lived and Died Without Ever Knowing Her Organs Were in the Wrong Places

A 99-year-old woman in the US state of Oregon lived a long life with one of the world’s rarest and often fatal conditions: a body in which most of her major organs were on the wrong side. Even more amazingly, the woman remained blissfully unaware of her unusual predicament. It was only after medical students and their professor got to study her body, which she donated to science, that the strange organ arrangement was uncovered. Read More >>

These Are the Drugs People Like to Mix With Sex, According to a New Study

Men and women across all sexual orientations are up for mixing drugs and sex, suggests the results of a new study out earlier this week. As part of a larger survey, it found that plenty of gay, bisexual, and heterosexual people admitted to having sex while on drugs, and some explicitly used drugs to enhance their sexual experiences. Read More >>

Scotland’s HPV Vaccine Is Already Dramatically Lowering Rates of Cervical Disease

A new study out Wednesday in the BMJ is the latest to showcase even the short-term benefits of the human papillomavirus (HPV) vaccine. It found that the routine vaccination of preteen girls in Scotland, starting in 2008, led to drastically lower rates of cervical disease by the time the girls turned 20. That included conditions known to raise the risk of cervical cancer later on in life. Read More >>

Great White Sharks Appear Perfectly Healthy Despite Lead, Arsenic, and Mercury Coursing Through Their Veins

Great white sharks aren’t the unstoppable killing machines of Hollywood’s imagination, but studies have continuously shown that they’re definitely badasses of evolution. A new paper out this week adds to this, finding that great whites can easily withstand levels of heavy metals that would kill most other animals, all without any apparent health problems. Read More >>

A Major Change to How Doctors Talk About Mammogram Results is Coming Soon

Doctors across the U.S. may soon be required to provide women with more information about their mammography results. This week, the American Food and Drug Administration announced plans to update a rule that would mandate doctors tell patients if they have dense breast tissue, a complicated risk factor for breast cancer. Read More >>

Even the Most Minimal Exercise Can Drastically Improve Your Health, Yet Another Study Finds

We know that regularly getting some exercise, no matter how little, can keep you alive longer. But new research out Monday suggests that even an hour’s worth of walking per week can help older adults with ailing knees avoid painful, isolating disabilities down the road. Read More >>

Mother Leaves Hospital With Newborn, Not Knowing She’s Also Pregnant With Twins

A new mother in Bangladesh got quite a surprise last week: Less than a month after she had delivered a healthy baby boy, she returned to the hospital and delivered a set of fraternal twins, who, unbeknownst to her, had been growing inside a second uterus. Thankfully, all three children were delivered without complications. Read More >>

In the Wake of Failed Alzheimer’s Drug Trials, Scientists Are Cautiously Finding Hope With a New Strategy

The field of Alzheimer’s research one filled with disappointment. Just last week, yet another drug failed its Phase 3 clinical trial, continuing the 15-year-long losing streak since a truly new Alzheimer’s treatment was approved by the Food and Drug Administration. Read More >>

Artificial Wombs Are Getting Better and Better

In 2017, a team of Australian and Japanese scientists announced a breakthrough that could someday save the lives of countless babies. They used an artificial womb to keep premature lamb fetuses alive and healthy enough for them to be later delivered without serious health complications. This month, that same team announced a leap forward in their technology, now claiming it can keep even extremely premature lambs alive. Read More >>

New Postpartum Drug Offers a Wholly Different Approach to Treating Depression

New mothers suffering from postpartum depression finally have a treatment approved specifically for them. It’s the second drug this month approved by the US Food and Drug Administration to address depression in a dramatically different way. But the treatment won’t come without serious restrictions on its use, nor will it necessarily be cheap. Read More >>

Scientists Gave Mice a Psychedelic Drug to Figure Out How We Hallucinate

Seeing something that isn’t there can be one of the strangest, frightening, and baffling experiences a person can have. But scientists at the University of Oregon in the US say they’ve come a bit closer to understanding what happens in the brain when we hallucinate—and all they had to do was trip out some poor mice. Read More >>