Why wound healing gets harder as we age
When you skinned your knee as a kid, the scrape healed on its own with little more than a bandage and mom's TLC. Now that you're older, wounds can take much longer to heal — sometimes many months. The body's capacity to repair the skin diminishes as we get older. There aren't as many growth factors and stem cells in the skin. Chronic disease, especially blood vessel disease, and malnutrition can also slow the healing process.
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