A new study shows modern human PSPH gene variants produce L-serine more efficiently than ancient hunter-gatherer versions, revealing how brain biochemistry evolved over time.

The best free internet speed test apps are Meteor for app-performance insights, Speedtest by Ookla for all-around testing, FAST for quick ad-free checks, Speedcheck for test history, and Speed Test ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

A social media post from the US Food and Drug Administration this week shows a big-eyed macaque staring out from behind bars. “Some drugs use 144 monkeys on average for preclinical testing,” the post ...

If you don't feel well, you may worry that you have COVID-19. The only way to know for sure is to take a test. At-home tests can tell whether you have the virus right now. More specialized antibody ...

Millions of Americans have allergies. You might sniffle and sneeze as the seasons change or get itchy and teary-eyed when you dust the house or pet an animal. Perhaps you start wheezing when you eat a ...

For decades, scientists have theorized that two genetic defects have the potential to essentially “cancel each other out,” restoring normal protein function in the process. A new study confirms this ...

DNA ancestry testing has come a long way, making it far easier to explore where you come from and what your genes can reveal. As these services grow in popularity, more companies are entering the ...

Once again, it's the time of year when respiratory illnesses — including COVID-19 — make their comeback. So, as we gear up for another winter virus season, take a moment to make sure you know how and ...

If you’re experiencing a sluggish internet connection, it’s probably time to check the speed. We’ll show you several ways to measure the speed of your internet connection using on-board tools in ...

A new approach to a routine blood test could predict a person’s 30-year risk of heart disease, research published Saturday in the New England Journal of Medicine found. Doctors have long assessed ...

The Food and Drug Administration on Monday approved Guardant Health’s blood test, called Shield, to screen for colon cancer. The test isn't meant to replace colonoscopies, but is generating enthusiasm ...