The placenta has long been thought to produce serotonin during pregnancy. But in a new study, Yale researchers shatter the deep-rooted hypothesis—and show that the placenta doesn't produce serotonin ...

Scientists have studied the main source of serotonin in the brain -- the dorsal raphe nucleus (DRN). By studying how activating the brain's 'serotonin center' affects awake animals for the first time, ...

Using light stimulation and MRI, scientists compared the effects of stimulating the brain’s serotonin center in awake and anesthetized mice, showing a clear difference in activation levels between the ...

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.

If you’ve heard of two of the brain’s chemical neurotransmitters, it’s probably dopamine and serotonin. Never mind that glutamate and GABA do most of the work — it’s the thrill of dopamine as the ...

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 ...

Researchers at Baylor College of Medicine, the University of Cambridge in the U.K. and collaborating institutions have shown that serotonin 2C receptor in the brain regulates memory in people and ...