New research has uncovered evidence that remnants of the COVID-19 virus may remain in some patients' guts for months, contributing to the lingering symptoms known as long COVID. The remnants appear to ...

A new study suggests this may lead to symptoms seen in long COVID patients. Decreased levels of serotonin in the body may be a contributing factor in the development and persistence of so-called 'long ...

When UVB rays from sunlight hit the skin, they spark the production of vitamin D₃, essential for strong bones, immune health, and brain function. But it doesn’t stop there. Sunlight also triggers a ...

Loss of the "happiness" brain hormone serotonin might play a role in the decline of brain function as a person ages, a new study reports. People with mild cognitive impairment (MCI) had up to 25% ...

Imagine your brain is Instagram. Then serotonin—a neurotransmitter that governs your mood—is the tech that allows one brain nerve cell to slip into another’s DMs. These messages tell your body what to ...

If you've been lacking the motivation to clean your house, get a workout in or just can't get out of bed, it could be that your serotonin and dopamine levels are out of whack. When you're deficient in ...

Serotonin is often referred to as the "happiness molecule." It plays a critical role in affecting mood levels and is also a neurotransmitter that sends signals within the brain and the body.

LONDON (Reuters) - Fluctuating levels of the brain chemical serotonin, often brought on when someone hasn't eaten or is stressed, affect brain regions that enable people to regulate anger, scientists ...

If you haven't noticed, I like to be somewhat hardcore about the biology of what is going on. I use the delicacies of psychology all the time in my work, but psychology takes so much explaining that I ...

Mice genetically deficient in serotonin -- a crucial brain chemical implicated in clinical depression -- are more vulnerable than their normal littermates to social stressors, according to a Duke ...