Aging is a complex process influenced by a range of internal and external factors. Intrinsic aging, driven by genetics and natural biological changes, includes reduced collagen production, cell turnover, and hormone levels. Extrinsic aging, caused by external factors like UV radiation, smoking, and pollution, accelerates aging by damaging skin cells and collagen. Lifestyle choices such as diet, sleep, and exercise play a role too. Combined, these factors contribute to fine lines, wrinkles, sagging, pigmentation changes, and reduced skin elasticity, all commonly associated with the aging process. Proper skincare, sun protection, and a healthy lifestyle can mitigate these effects.