Neural chemistry
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Why nerves misfire when you only drink water
A nerve fires on a sodium gradient. Drinking only water during long effort can wash that gradient down.
Neural chemistry -
Daylight, brain serotonin, and the gut's separate pool
Morning light reaches brain serotonin through the eye. The gut's serotonin does not commute upstairs to become a mood.
Neural chemistry -
Light affection and the oxytocin pulse
A hand on an arm can raise oxytocin when the touch is wanted. The pulse is a context signal, not a switch.
Neural chemistry -
What dopamine does in the last minutes of hard effort
Dopamine in hard effort is a keep-going signal, not a pleasure spray that arrives when the work is over.
Neural chemistry