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It's winter here in the northern hemisphere, the days are short and moods are low. For some people, even the thought of Christmas isn't enough to lift their mood. Depression can affect up to two out ...

2. How is serotonin made? Serotonin is made via a unique biochemical conversion process. It begins with tryptophan, a building block to proteins. Cells that make serotonin use tryptophan hydroxylase, ...

When they work, antidepressants can be a godsend. But they only work in about half of the patients who take them. And if the first attempt doesn't work, there are second- and third-line options to ...

Nace Golding, a neuroscientist at the University of Texas at Austin, and his team were surprised to find that serotonin also regulates the sensitivity of auditory neurons, brain cells involved in ...

Serotonin is sometimes known as the happy chemical, because it appears to play an important role in regulating mood, and low levels of serotonin in the brain have been associated with depression. (1) ...

Serotonin is a neurotransmitter, or chemical messenger, that controls and stabilizes your mood and functions in your brain. What might surprise you is that it’s also crucial to the functions of your ...

Dopamine and serotonin are both neurotransmitters. Neurotransmitters are chemical messengers used by the nervous system that regulate countless functions and processes in your body, from sleep to ...

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 ...

Serotonin reuptake inhibitors (SRIs) are a class of drugs that affect the brain’s serotonin system, and doctors most commonly prescribe them as antidepressants. SRIs increase the levels of serotonin ...