Uncategorized
- Health & Medicine
Sperm with damaged DNA may cause some repeat miscarriages
An analysis of semen from men whose partners have experienced multiple miscarriages revealed abnormalities, a small study finds.
- Health & Medicine
A single sweaty workout may boost some people’s memory
Memory improvements after a short bout of exercise mirrored those seen after months of training.
- Health & Medicine
Edibles are tied to more severe health issues than smoking marijuana
Most marijuana-linked cases at a Denver hospital involved weed smokers. But people who ate the drug were more likely to have heart or psych issues.
- Health & Medicine
Signs of new nerve cells spotted in adult brains
A study finds new evidence that adult brains grow new nerve cells, even the brain of an octogenarian.
- Particle Physics
How a proton gets its spin is surprisingly complicated
Pinning down the source of protons’ spin is surprisingly hard to do.
- Paleontology
Saber-toothed cats were fierce and family-oriented
New details shift the debate on whether Smilodon lived and hunted in packs, and answer questions about other behaviors and abilities.
- Neuroscience
Women have a new weapon against postpartum depression, but it’s costly
The newly approved drug brexanolone simulates a natural hormone to alleviate symptoms of postpartum depression.
- Health & Medicine
U.S. fentanyl deaths are rising fastest among African-Americans
New statistics on fentanyl-related overdoses show troubling increases in deaths among African-Americans, Hispanics and men.
- Archaeology
The oldest known astrolabe was used on one of Vasco da Gama’s ships
A navigational device for taking altitudes at sea was found in a Portuguese shipwreck in the Arabian Sea and dates back to 1496.
- Paleontology
Newfound fossils in China highlight a dizzying diversity of Cambrian life
A new treasure trove of Cambrian fossils in China dating to 518 million years ago could rival Canada’s Burgess Shale.
- Health & Medicine
Saving monkey testicle tissue before puberty hints at a new way to preserve fertility
Frozen testicle tissue samples from prepubescent monkeys transplanted back onto those monkeys once they matured produced sperm.
- Health & Medicine
A new ketamine-based antidepressant raises hope — and questions
Little is known about the long-term effects on people of a newly approved antidepressant based on the anesthetic ketamine.
