A major Alzheimer’s risk gene may shrink brain cells years before symptoms
Researchers have uncovered a possible reason why the Alzheimer’s risk gene APOE4 can disrupt the brain long before memory problems begin. In mice, APOE4 increased…
The dental crown of the future could be 3D-printed while you wait
Researchers have found a way to slash the processing time for 3D-printed zirconia crowns from as much as 100 hours to under 30 minutes. The…
A hidden “on switch” in human DNA has finally been decoded
Researchers have used AI to uncover the DNA signature of a key genetic “switch” involved in turning genes on. After analyzing about 500,000 DNA sequences,…
Experimental compound helps burn fat without muscle loss
A decades-old compound may point to a new way of treating obesity by making the body burn more energy rather than simply reducing appetite. In…
Cannabis use linked to 37% higher stroke risk in massive study
A massive analysis involving more than 100 million people has found strong links between recreational drug use and stroke, including among younger adults. Cocaine was…
This shark can live 400 years. Its eyes barely seem to age
Greenland sharks may live for 400 years without suffering the kind of retinal decline normally associated with aging. Researchers found healthy eye tissue and active…
Quitting alcohol may prime the brain for relapse
Mice that developed compulsive drinking after alcohol abstinence showed more than double the activity in a brain region associated with stress and addiction. Because the…
Peppermint oil lowers blood pressure in just 20 days
Peppermint oil may have an unexpected benefit for people with mildly high blood pressure. Adults who took a small dose twice daily for 20 days…
Exercise may work better for keeping weight off than losing it
Exercise may not be a powerful weight-loss tool on its own, but it appears to play a much bigger role in preventing lost weight from…
Multilingual people may have brains up to 13 years younger
People who speak several languages may have brains that age more slowly, with four-language speakers showing brains that appeared about 13 years younger than those…