Here's a breakdown:
Hair Follicle Shape:
* Straight hair: The hair follicle is round, allowing the hair shaft to grow straight out.
* Curly hair: The hair follicle is oval or flat, causing the hair shaft to grow out in a curved shape. The more oval the follicle, the tighter the curl.
* Wavy hair: The follicle shape falls somewhere between round and oval, resulting in wavy hair.
Keratin Distribution:
* Keratin: A protein that makes up hair, nails, and skin.
* Straight hair: Keratin is distributed evenly within the hair shaft.
* Curly hair: Keratin is not evenly distributed, leading to uneven growth and a curved shape.
Other Factors:
* Genetics: Your hair texture is primarily determined by your genes.
* Hormones: Hormones can influence hair follicle shape and keratin production, potentially impacting hair texture.
* Environment: Factors like humidity, heat styling, and hair products can also affect the appearance of your hair.
In summary: The shape of your hair follicle and the distribution of keratin within the hair shaft are the primary factors responsible for your hair texture. Genetics plays a major role in determining these characteristics.