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.
Priya Raman
Articles
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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.
Lena Voss
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.
Priya Raman
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.
Lena Voss