Latest Articles
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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 -
A late meal and the next morning's insulin
Eating late lands the meal when insulin sensitivity is already lower, and the next morning still shows it.
Energy metabolism -
Growth hormone waits for deep sleep, not for an early bedtime
The big growth-hormone pulse rides slow-wave sleep. Going to bed early does nothing if that deep sleep never arrives.
Hormones and signaling -
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