Why Does Your Body Heal When You Sleep_ Sleepy Science for Deep Sleep
A cut on your finger heals faster at night. A fever breaks while you are unconscious. A muscle strain feels better in the morning than it did the night before. Your body is not resting when you sleep. It is working.During deep sleep, your pituitary gland releases growth hormone, which stimulates tissue repair and muscle growth. Your immune system releases cytokines, proteins that fight infection and inflammation. Your cardiovascular system lowers blood pressure and heart rate, giving your heart a nightly vacation. Your digestive system regulates hunger hormones, balancing ghrelin and leptin…
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