PSI Barbering Practice Exam

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Which of the following is NOT a common cause of hair loss?

Aging
Chemotherapy
Frequent shampooing
Genetic predisposition

The correct answer is: Frequent shampooing

Frequent shampooing is not associated with hair loss. While excessive washing or using harsh shampoos may lead to temporary hair issues, such as dryness or brittleness, it does not directly cause hair loss. On the other hand, aging, chemotherapy, and genetic predisposition are well-documented causes of hair loss. Aging can lead to thinning hair and baldness as part of the natural aging process. Chemotherapy often causes hair to fall out as a side effect of cancer treatments, while genetic predisposition can result in conditions like male or female pattern baldness, where heredity plays a significant role in hair loss. Understanding these common causes helps to differentiate between factors that truly contribute to hair loss and those that do not.