serotonin tattoo 02
The one on the far right, acetylcholine: learning, dreaming, remembering
from left to right: serotonin (a happiness hormone) and dopamine (a love hormone)
What makes you happy? Serotonin, dopamine. Bang Bang NY. Tattoo
Dopamine and Serotonin
My serotonin and dopamine tattoo from Artistic Skin Design East Indianapolis. Happiness!
This photo was uploaded by Isildilme.
Cute Watercolor Bird Tattoo