Final answer:
Sebum trapped by dead skin cells, often exacerbated by hormonal changes and poor hygiene, leads to the common skin condition known as acne. Preventative measures include regular cleaning with mild soap and a diet low in refined sugars and carbs.
Step-by-step explanation:
Sebum trapped by dead skin cells is commonly known as acne. Sebum is an oily substance produced by the sebaceous glands, found within the dermis layer of the skin. These glands are associated with hair follicles and release sebum to lubricate and waterproof the skin and hair. The production of sebum can sometimes become excessive, especially during hormonal changes like puberty, resulting in the accumulation of sebum along with keratin which can block hair follicles. This blockage can lead to whiteheads, which when exposed to air and oxidized, turn into blackheads. An infection by acne-causing bacteria, such as Propionibacterium and Staphylococcus, can then result in redness and scarring.
To prevent acne, it is advised to clean the skin daily with a mild soap to remove excess oil and dirt. Eating a diet low in refined sugars and carbohydrates may also help reduce its occurrence.