Erectile dysfunction (ED) affects about 30 million men in the United States. Even if men don't have ED, they can still have sexual problems. And they may be reluctant to seek treatment for sex problems until they experience ED.

Men can look up how to fix their erectile dysfunction themselves and maybe even find the drugs to take care of it. But that may not be the best approach.

While you're lazily flipping channels on the remote, your sperm may be lazing about as well. But get up and exercise, and your sperm may get up and going too.

Treating sleep apnea can make for a better night's sleep. The same apnea treatment can make for better sex too. 

Erectile dysfunction (ED) is a common problem, especially for men over 40. For some men, ED is a red flag for heart problems. As such, men with ED may need to keep a closer watch on their heart health.

Veterans returning from combat can find it hard to adjust to their old lives. Many Iraq and Afghanistan veterans have experienced traumatic events, which can lead to post-traumatic stress disorder (PTSD) and depression.

Men with end-stage renal disease can be successfully treated with dialysis and transplants. But their quality of life may be interrupted by erectile dysfunction (ED). 

For men, the "golden years" may present some unfortunate obstacles to having sex. Maintaining a healthy weight could keep their sex lives from taking a dive. 

Your smile could reveal that you have erection problems. Inflamed gums are a sign of gum disease. This condition can lead to heart disease, which has been linked to erectile dysfunction (ED).