This is probably the most interesting benefit — and one that actually has scientific research behind it.
Your core body temperature naturally begins to decrease as bedtime approaches. A warm shower or bath can temporarily warm the skin and increase blood flow toward the hands and feet. Afterward, the body can release heat more efficiently.
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That cooling process may help support the body’s natural
transition toward sleep.
A systematic review and meta-analysis found that taking a warm shower or bath at around 40–42.5°C (104–108.5°
