How Natural Rewards Like Food and Sex Increase Dopamine Levels #161942 (License: Personal Use)

The left graph shows dopamine levels spiking rapidly after food consumption, peaking around 20 minutes, then gradually declining. The right graph demonstrates a sharper, higher dopamine surge following sexual activity, with multiple peaks across repeated trials, indicating sustained reward response. Both charts use NAc shell (nucleus accumbens shell) measurements from rodent studies.

Used in neuroscience, psychology, or health education web pages explaining brain reward mechanisms; targets users seeking science-backed insights into motivation, addiction, or behavioral biology.