It’s not the first time we’ve advised men (and women) who want to become parents that they need to stop smoking immediately, and it won’t be the last. Now another new study adds to the already compelling body of damning evidence showing that smoking harms fertility.

In this new study, researchers at the University of Saarland, in Germany, looked at specific proteins in the sperm of men who smoked, and compared them with the same proteins in non-smokers. These proteins, called protamines, are necessary for sperm development. The scientists found that, in smokers, the genetic material of these proteins can be damaged, making the sperm incapable of fertilizing an egg.

Since men are constantly producing new sperm, they can produce sperm without protamine problems several months after they quit. In fact, for couples who are considering IVF (in vitro fertilization), the German scientists recommend that men stop smoking for at least three months before attempting a cycle.

By: Beth @ Concieve

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