The COVID-19 pandemic has significantly accelerated a trend that has seen rising rates of anxiety and depression for many years. How serotonin controls behaviour: Study Serotonin, a neurotransmitter that is generated by many animals and was first identified in the 1930s, regulates a wide range of behaviours including feeding, sleep, mood, and cognition. The tiny roundworm Caenorhabditis elegans has been …
