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Skin

Aged skin
Aged skin

Skin, as the most readily visible organ of the human body, is one of the first to let us know that we are getting older. Our skin goes beyond appearance; it protects our internal organs from bacteria, fungus, viruses, toxic chemicals, and various other harmful agents. It prevents us from excessive loss of water, insulates us from the cold, and sweats to cool us down when we are hot. Blood vessels in the skin expand and contract to help us release and conserve, respectively, the heat within our bodies. Skin is also the primary tissue for vitamin D synthesis and, crucially, provides us with the wonderful sensation of touch.

Damage to the skin can come in many forms, including UV light, trauma, burns, genetic predispositions, and pathogens. As with other tissues, skin deteriorates as we age. It becomes thinner, less elastic, more easily damaged, and less able to heal itself. The risk of developing skin cancer also increases dramatically as we age. Diabetes, a disease with many connections to aging, can cause a whole host of skin issues, including dryness, rashes, and diabetic ulcers.

Damage to the skin often results in scar tissue, which does not retain the same functional capabilities as healthy skin and can be chronically painful or sensitive. The psychological effects of scar tissue can also be quite devastating. In the worst-case scenarios, when wounds are too large or too deep or the skin’s ability to heal is too limited, such wounds can become chronic. In addition to being extremely painful, these sites are ripe for infections, which can be deadly.