If Your Hair Seems Thinner, You're Probably Not Imagining It. Here's Why.
HuffPost
And it can start earlier than you thought.
Whether you experience pattern baldness or just notice your hair isn’t quite as thick as it used to be, most of us (regardless of gender!) will experience some sort of hair thinning as we age ― and it can start earlier than you thought.
We checked with top doctors and a biologist to get to the bottom of why our hair thins and what determines when this happens.
The amount and thickness of hair you start off with in life are already predetermined.
Several factors determine how much hair we have and whether we have a thick, full head of hair or thin, wispy strands. However, the primary factor is genetics, explained Dr. Paradi Mirmirani, a dermatologist at Kaiser Permanente in Vallejo, California.
How much hair you start with, and whether it is thick or thin, depends on how many hair follicles you were born with and the diameter of the follicles.