WHY DO MEN LOSE HAIR?

The cause lies in DHT.
DHT is a molecule naturally produced in our body.
LET’S TAKE A STEP BACK TO UNDERSTAND THIS BETTER:
The hair cycle is made up of 3 phases that repeat endlessly—anagen, catagen, and telogen.
In simple terms, hair grows, then falls out because it’s old and needs to be replaced by new hair, and this cycle keeps repeating normally in all people.
These 3 phases are regulated by two elements that are produced directly inside the follicle:
1) ESTRONE: to make the hair grow.
2) DHT: to make the old hair fall out.
SO IT’S NOT “BAD”:
DHT simply serves to make old hair fall out so it can be replaced by new hair.
However, if it is produced in excessive quantities—or especially, in most cases, if someone is genetically too susceptible to it—it becomes particularly harmful to the follicles.
DHT is considered the main cause of androgenetic alopecia, it leads to follicular miniaturization and, subsequently, bulb atrophy, which definitively ends the hair growth cycle.
THERE IS NO TIME TO WASTE:
If the bulb becomes completely atrophied, it will no longer be possible to save it.
ONE SHOULD NOT POSTPONE, BUT SHOULD ACT AS SOON AS POSSIBLE.