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 ...

Comparing PET scans of more than 90 adults with and without mild cognitive impairment (MCI), researchers say relatively lower levels of the so-called 'happiness' chemical, serotonin, in parts of the ...

A new study in mice strongly suggests that serotonin and drugs that target serotonin, such as anti-depressants, can have a major effect on the gut's microbiota -- the 100 trillion or so bacteria and ...

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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 ...

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 ...

Increasing serotonin can change how people learn from negative information, as well as improving how they respond to it, according to a new study published in the journal Nature Communications. The ...

Serotonin is one of the primary chemicals that the brain uses to influence mood and behavior, and is a key target for psychiatric drugs. But to aid in the design of improved drugs scientists need to ...

New research suggests we don't understand antidepressants as well as we thought. Source: Anna Shvets/Pexels Depression, we are commonly taught, is the result of a “chemical imbalance”: having lower ...