Two-thirds of men are affected by male pattern baldness, with 40% experiencing noticeable hair loss by the age of 35, but there are some things you can do to try to keep it at bay Consider prescription medications There are two clinically approved drugs for preventing further hair loss – finasteride and minoxidil . Finasteride works by inhibiting the hormone dihydrotestosterone (DHT), which causes the hair follicles to shrink and eventually fall out, while minoxidil increases blood flow and nutrient uptake to the follicles. Both treatments may result in some hair regrowth as well, but they include the risk of side-effects. Finasteride has been found to lead to erectile dysfunction and decreased libido in approximately 1 in 31 men, while minoxidil can result in skin irritation and allergic reactions. Use a laser comb Apart from finasteride and minoxidil, laser combs are the only hair-loss treatment to have received FDA approval. (In...