Alabama Cosmetology Licensing Practice Exam

Name the primary factors that influence hair growth.

1. Color treatment and hair length

2. Genetics, health, and nutrition

3. Hair thickness and styling tools

4. Weather conditions and hair products

The correct answer is: Genetics, health, and nutrition

The primary factors that influence hair growth include genetics, health, and nutrition, which is why this choice is the correct answer. Genetics plays a crucial role in determining hair growth patterns, thickness, and longevity. Individuals inherit characteristics from their parents that can affect how quickly their hair grows or how thick it may become. Health is another significant factor, as physical conditions such as hormonal imbalances, scalp health, or medical issues can directly impact hair growth. For instance, conditions like alopecia or thyroid problems can lead to hair loss or stunted growth. Nutrition is equally important; a well-balanced diet that includes vitamins and minerals supports overall body health, including the hair. Nutrients such as proteins, vitamins A, C, D, E, iron, and omega-3 fatty acids are critical for healthy hair growth. The other choices factor in aspects related to hair, but they do not fundamentally affect the biological process of hair growth to the same extent as genetics, health, and nutrition do.