Posts with tag #Dopamine

The hour after orgasm, with prolactin rising as arousal falls

What an orgasm changes in the next hour

| 7 min read

After orgasm, prolactin often rises and oxytocin can rise with it. The next hour is a hormone shift, not a cure.

#Oxytocin #Dopamine
Gut serotonin staying in the gut, walled off from the brain by the blood-brain barrier

Daylight, brain serotonin, and the gut's separate pool

| 7 min read

Morning light reaches brain serotonin through the eye. The gut's serotonin does not commute upstairs to become a mood.

#Dopamine #Sleep architecture
A runner in the last minutes, when the keep-going signal matters more than comfort

What dopamine does in the last minutes of hard effort

| 7 min read

Dopamine in hard effort is a keep-going signal, not a pleasure spray that arrives when the work is over.

#Dopamine