serotonin-deficiency theory

The serotonin-deficiency theory suggests that low levels of serotonin, a neurotransmitter in the brain, may contribute to conditions like depression and anxiety. Serotonin helps regulate mood, sleep, and overall emotional well-being. When its levels are insufficient, it can lead to symptoms such as persistent sadness, irritability, and difficulty sleeping. This theory has influenced treatments like antidepressant medications aimed at increasing serotonin activity. However, it’s important to note that mental health conditions are complex and involve multiple factors, so serotonin deficiency is just one piece of the larger puzzle.