Hormones and signaling
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Cold hits the nerves first and the thyroid later
The first response to cold is sympathetic. Thyroid hormone turnover changes on a slower clock than shivering.
Hormones and signaling -
What an orgasm changes in the next hour
After orgasm, prolactin often rises and oxytocin can rise with it. The next hour is a hormone shift, not a cure.
Hormones and signaling -
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 -
How a short night changes the next morning's glucose
A short night raises the morning cortisol signal and makes the same breakfast harder for insulin to clear.
Hormones and signaling