The following information is vital to know about.  Without the understanding of this information you can drive yourself crazy with worry.
How and why hair grows and falls out
Each individual hair on your head has a life cycle of 2 – 3 years.  After this 2 to 3 year period the one individual hair is pushed out by another growing hair underneath it, similar to a young child’s tooth being pushed out by the adult tooth.  Now a new hair grows in replacing the older hair.
This pushing out of older hairs replaced by new hairs is what causes normal shedding.  The average is to lose 50 to 100 hairs a day.  The finer your overall head of hair is the closer to 50 hairs a day shedding, and the thicker or more hair you have the closer to 100 hairs a day shedding.   But even 50 hairs a day on any person’s head is a lot of hair loss per day of which can make a person worry or even panic.  That is why it is so very important to know about the normal revolving of new hairs pushing out the older hairs.
Now let’s connect this understanding of normal hair shedding to how you might actually have hair loss:            The process of losing hair through genetic hair lose, a common cause, occurs within this normal shedding process as follows:

The normal shedding of hairs, from 50 to 100 hairs a day still occurs normally, but the new hair grows in and has a thinner diameter than the previous hair, which means the more of these thinner diameter hairs the less fuller you hair becomes.
These new hairs also grow into a shorter hair length, meaning they will now not keep growing to any length. Some of these newer hairs will only grow to 10” and stop, yet others only to 5”, and yet others only to ½ “.   So as time goes on your new hairs are growing in thinner diameters and all different shorter degrees.  This can cause your ends to look thin or even appear like split-ends.  This also causes an appearance as if your hair just grows to a certain hair length and then stops, which in effect that is what’s happening.

Note, as each new hair grows in, pushing the last hair out, each new hair grows to an even thinner diameter and an even shorter hair length.  This continues on from each hair cycle, sometimes slowing down and sometimes stopping, although sometimes continually until each new hair gets to baby hair fuzz,  and sometimes fades away into no more growing hairs.   Every case is differ and almost impossible to predict, but nevertheless don’t let the normal 50 to 100 hairs a day worry you because this is still average and normal.
Some options that might help.                                                                                                                                         To keep your hair at optimum health it’s important to get and stay healthy, eating better, taking vitamins…