A frighteningly large percentage of Americans are going bald. It is in fact a phenomenon that is not just restricted to men. Women too have been experiencing hair loss at an unprecedented rate; something that Doctors have so far only been able to speculate is related to the added stresses of 21st century American life.
With all of these added social pressures come more options available to those with receding hairlines.
One way to treat this problem is through the use of topical medications such as those available over-the-counter. Rogain and its' spin-offs sell really well, but they don't work for everyone.
Also, these medications simply keep you from losing the hair you have, nothing known to science at this time can actually help you re-grow hair that has been lost.