The function of underarm hair has multiple purposes in the human body. The underarm hairs provide a natural barrier to keep perspiration and bacteria from penetrating the skin is one of its primary roles. Infections of the skin and other skin-related issues can be avoided in this way.
Additionally, underarm hair acts as a natural pheromone receptor.
The body releases chemicals called pheromones, which have the ability to influence other physiology or behavior of people. Sebaceous glands, which are abundant in axillary hair, release pheromones that are useful for social communication and partner attraction.
Furthermore, by maintaining a layer of air near the skin, underarm hair helps to control body temperature by keeping the body warm in the winter and cool in the summer. It is important to remember that an individual’s lifestyle, cultural background, and personal choices can all affect the function of underarm hair. For cultural or personal reasons, some people may decide to leave the hair in their armpits, while others may decide to remove it.
In conclusion, hair in the armpits serves as a natural barrier collects perspiration and pathogens, functions as a pheromone sensor, and aids in controlling body temperature.