Hygiene

Bacteria decomposing sweat

Sweat itself is odorless, but when bacteria break it down, it produces a bad smell, especially in areas like armpits and feet.

At least twice weekly

Regular washing of hair—at least twice a week—helps remove oil, sweat, and dead skin cells to prevent dandruff and infections.

Tooth decay

Food particles left in the mouth promote bacterial growth, leading to tooth decay if not cleaned properly.

Dead skin cells on scalp with excess oil

Dandruff occurs when sebaceous glands produce too much oil, causing dead skin to flake off.