Humans are oily because of sebaceous glands, which are small glands located throughout the skin. These glands produce a substance called sebum, which is an oily substance that helps to lubricate and protect the skin. Sebum also helps to keep skin soft and supple.
Here are some reasons why human skin produces sebum:
- Protection: Sebum acts as a barrier against environmental factors like bacteria, viruses, and fungi. It also helps to prevent water loss, which is important for keeping skin hydrated.
- Lubrication: Sebum helps to reduce friction between skin surfaces. This is especially important in areas like the elbows, knees, and armpits, where the skin rubs together frequently.
- Skin health: Sebum helps to keep skin healthy and elastic. It also helps to prevent the skin from becoming dry and cracked.
While sebum is essential for healthy skin, too much sebum can lead to oily skin, acne, and other skin problems. Here are some factors that can contribute to excessive oil production:
- Hormones: During puberty, hormone levels fluctuate, which can lead to increased sebum production.
- Genetics: Some people are genetically predisposed to having oily skin.
- Diet: Eating a diet high in processed foods and sugary drinks can contribute to excessive sebum production.
- Stress: Stress can trigger the release of hormones that increase sebum production.
If you have oily skin, you can try to manage it by washing your face twice a day with a gentle cleanser, avoiding heavy makeup, and using oil-free skincare products.
