Long COVID appears to trigger a drop in levels of the chemical serotonin, which may explain such symptoms as fatigue, brain fog and memory loss, new research suggests. Photo by Andrea ...

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 ...

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% ...

Serotonin is a chemical that plays an essential function in mood, sleep and well-being. Low levels of serotonin can contribute to depression, anxiety and other challenges. You may be able to increase ...

Research shows that reward-based learning requires the two neuromodulators to balance one another's influence -- like the accelerator and brakes on a car If you've heard of two of the brain's chemical ...

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.

Serotonin is a neurotransmitter important for mood, digestion, and sleep. You can increase serotonin levels naturally through exercise and sunlight. Serotonin is a naturally occurring monoamine ...

LONDON, UNITED KINGDOM - 2022/03/09: A protester holds up a placard demanding research into Long Covid-19 during the demonstration. A protest group in Parliament Square demands the government invest ...

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 ...

People with fewer happy chemicals in their brain might be at greater risk of neurodegeneration from Alzheimer's disease, according to new research. Of people with mild cognitive impairment, those with ...