Hair Lifespan: How Long Do Hair Strands Last?

The lifespan of a hair strand varies depending on factors like genetics, nutrition, and overall health, but here's a general breakdown:

* Scalp Hair: Typically lives for 2 to 7 years.

* Eyebrows and Eyelashes: Much shorter lifespan, usually around 3 to 6 months.

* Body Hair: Also has a shorter lifespan than scalp hair, generally lasting from 3 to 6 months.

It's important to note that hair growth is cyclical, with each hair follicle going through phases of growth, transition, and rest. At any given time, most hair follicles are in the growth phase, which is why we don't lose all our hair at once.