Do Serotonin Levels Fluctuate During the Day?

Fluctuations of serotonin levels in the brain, which often occur when someone hasn't eaten or is stressed, affects brain regions that enable people to regulate anger, new research has shown.

What time of day is serotonin highest?

The results show that in both the tryptophan-treated and untreated groups the highest values appeared during the beginning of the darkness with a peak at 9, 10 and 11 p.m. in controls, and at 9 p.m. in the tryptophan-treated group.

Are serotonin levels lower in the morning?

When we wake up in the morning, serotonin, simply put, supports us in wanting to get up out of bed and start the day. Obviously there are many other factors that contribute to feeling energized and motivated in the morning, but serotonin is one of the main players.