Cellphones can harm male fertility

Men, if you're hoping to have kids -- either for the first time, or just want to add to your brood -- then do yourself a favor and take that cellphone out of your pocket.

Despite what you've heard, the radiation from cellphone exposure is neither harmless nor negligible -- and when it's in your pocket, it can wipe out your hopes for future generations.

One new review of 10 studies finds that keeping a phone in your pocket can lead to slower sperm that can't find the egg.

In men with no cellphone exposure, between 50 percent and 85 percent of sperm have that natural ability to move toward the egg, called motility. But if you keep a cellphone in your pocket, that number drops by about 8 percent.

Even worse, the review finds that it can also lead to a similar reduction in the number of living sperm.

Sperm are very sensitive to radiation, especially the electromagnetic radiation emitted by cellphones.

It's not too dissimilar from the type of radiation used in microwave ovens, so it's probably not entirely inaccurate to say that your cellphone could be cooking your sperm to death.

That's why, for example, a 2006 study found that men who used cellphones had measurably lower sperm counts than men who didn't. And remember, the phones of 2006 were very different -- they were smaller, more limited in function and we used them less.

It's quite possible that today's phones, which have bigger batteries and more powerful antennas to handle more functions, could do even more damage.

On the other hand, what your phone does to your testicles is nothing compared to what it'll do to your brain -- because emerging evidence confirms that regular cellphone use can increase the risk of brain tumors.

For more on that risk, and a few ways to keep safe, read this free report from my House Calls archives.