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 often described as the happiness chemical because of its well-known role in regulating mood. However, recent ...

Cognitive deficits accompany mood disorders and other psychiatric conditions, often with debilitating effects. Limited treatments currently exist, but studies in animals and humans have pointed to ...

Researchers have found that SSRI (Selective Serotonin Reuptake Inhibitors) antidepressants have the potential to improve certain cognitive functions, such as verbal memory. They measured brain ...

The intricate web of chemical messengers that facilitate communication between neurons represents one of the body’s most complex and fascinating systems. These neurotransmitters, including serotonin, ...

Most of the available anti-depressant drugs do one thing: They selectively block reuptake. That is why they are called selective reuptake inhibitors. A drug that is a selective serotonin reuptake ...

For the last half-century, the dominant explanation for depression has centered on serotonin. The basic idea: low levels of brain serotonin or serotonin activity lead to symptoms of depression. This ...

Platelets are clot-forming cell fragments that circulate through the blood. In retrospect, they make perfect sense as the body’s serotonin truckers because they absorb the gut-derived hormone, store ...