HealthHow Pregnancy Affects Sleep and Heart Rate: Key Changes Explained
Pregnancy causes significant physiological changes including hormonal shifts, increased blood volume, and metabolism changes that affect sleep, resting heart rate, heart rate variability, body temperature, and respiratory rate. In the first trimester, women may spend more time in bed but get little extra sleep due to nausea and frequent bathroom trips, says Dr. Chris Curry, OB/GYN and Women’s Health director at Oura.
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