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Will Sleeping on One Side Promote Hair Loss?

Does sleeping on one side cause hair loss?  Does keeping one side of your head on a pillow all night reduce the blood circulating on that side, thus starving one side of your hair from the blood flow and nutrients it needs to grow?  Are you setting yourself up for failure by sleeping on your favorite side, or should you force yourself to alternate each night?

Your follicles are pre-programmed to grow (and unfortunately shed) in their own unique way. Lying on one side or the other will not affect that. Rest assured that whether you sleep on your side, on your back, or on your stomach, the direction in which you sleep will not cause hair loss. Since the hair follicles are not impacted by the direction in which you sleep, you are not at risk for damaging them or causing hair loss.

Hair loss or baldness is a genetic trait—but unlike what you may have been told, it’s not necessarily passed down from your maternal grandfather. Medical science has come to learn that baldness genes are actually passed down from both sides of the family—and they affect hair loss in women as well as men. Baldness genes may also skip generations and are utterly random in terms of which siblings (male or female) they will affect. They may even have very different effects on siblings in the same family.

Male Pattern Baldness (otherwise known as Androgenetic Alopecia) will affect a lot of men, and is a result of a combination of factors including age, hormones, and genes.  It occurs in men whose hair follicles are sensitive to the hormone dihydrotestosterone, or DHT. Over time, DHT-sensitive hair (usually found on the top and front of the head) becomes weaker, finer, and eventually stops growing.

However, even men who experience advanced hair loss have healthy hair follicles around the sides of the head that last a lifetime. Even though these healthy hairs are exposed to DHT, they are resistant to this hormone and survive for a lifetime. So in essence, one can move the hairs from the sides and back of the head (resistant to DHT) to the top/ front areas of the head that need more hair. This is the basis of hair transplantation.

In the appearance conscious society in which we live these days, experiencing hair loss is not something most men would like to do. If you are looking for hair restoration options, Bosley is the right place to go to. Bosley has been a world leader in hair restoration since 1974, and Bosley Medical physicians have been recognized for their ability to provide state-of-the-art hair restoration. We have performed more than 250,000 hair transplantation procedures on men and women from more than 60 different countries. You can get more information or schedule a free consultation at

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