Add Yahoo as a preferred source to see more of our stories on Google. Colorful x-ray photograph of a human brain. The fiber tracts involved in aging. The splenium and genu of the corpus callosum, the ...

Consider what we ask of a clinical trial. We gather people who differ in nearly every way that matters, we give them the same drug at the same dose, and then we average the result and call the average ...

Hormone levels fluctuate like the tides, ebbing and flowing according to carefully orchestrated cycles. These hormones not only influence the body, but can cross into the brain and shape the behavior ...

Your brain cycles through several stages during sleep, and REM sleep might be the most critical. This mysterious phase, where dreams unfold and memories solidify, accounts for roughly a quarter of ...

Every day, your hormones are orchestrating a silent symphony in your body. Insulin, which regulates blood sugar, constantly adjusts to your diet and energy needs. The stress hormone cortisol peaks in ...

Many people suddenly find themselves struggling to sleep when they reach midlife—lifestyle changes, other health conditions, ...

Recent research indicates that the act of zoning out might be more than just a lapse in attention—it could be a crucial process akin to a rinse cycle for your brain. This mental decluttering, much ...

Hormones that fluctuate throughout the menstrual cycle might change the brain's structure, a new study suggests. The study, conducted by researchers at the University of California, Santa Barbara ...