The skin is the human body's largest organ, and it's important to keep it in good condition. The things you eat, the things you drink, lifestyle habits (such as smoking or excess drinking), medications, and the sun can all dramatically affect the health of your skin and how it looks.
Your skin's cells are constantly overturning, but this process slows with age. When the dead skin cells are left behind, your skin won't look its best.
Strands of hair from your head grow from your hair follicles, which are cell-lined sacs. Sebaceous oil glands attach to the follicles, which produce sebum. Sebum then climbs up the follicle to reach your scalp. Sebum thereafter goes about naturally oiling your hair and skin. If you're experiencing a lack of healthy hair growth, you need to learn whether your hair follicles are indeed alive and are capable of producing hair.