Well 1. even back of head hair thins eventually in balding people, but generally many decades later than the front or crown. By the time you're losing that hai

Well 1. even back of head hair thins eventually in balding people, but generally many decades later than the front or crown. By the time you're losing that hair, you're probably a lot older and care much less 2. taking finasteride indefinitely is supposed to drastically slow or stop further thinning or loss. Of course as in point 1, you're probably going to lose that battle eventually, but again you'll be much much older when the damage gets serious than you would have been otherwise