The main function of DSIP (delta sleep-inducing peptide) is to promote sleep. DSIP is a neuropeptide that can help improve sleep quality, reduce insomnia, and alleviate anxiety. It exerts its effects by regulating neural activity. DSIP can influence neurotransmitter levels in the brain, thereby modulating the sleep-wake cycle. Specifically, DSIP may increase the activity of gamma-aminobutyric acid (GABA), which promotes sleep. GABA is an inhibitory neurotransmitter that reduces neuronal excitability, aiding relaxation and facilitating sleep. Additionally, DSIP has antioxidant and anti-anxiety properties, further supporting its role in promoting sleep. These characteristics make DSIP potentially valuable for addressing sleep disorders and anxiety symptoms.