Men: When was your last doctor's appointment?

If you're like most men, you're sucking it up each time you're sick and not going to the doctor, reports the U.S. Department of Health and Human Services. This feeling of invisibility is what medical experts call the Superman Syndrome, and ironically there's nothing super about it.

It's important for men in their upper teens, 20s, and 30s to be examined regularly, so stop avoiding the doctor. Did you know that testicular cancer is at its highest incidence in these groups? By getting a regular check up, your doctor will not only check for testicular cancer, but he or she will also screen for quiet symptoms of other diseases. They may even be able to help you kick bad habits and give you tips on losing weight.

So the next time you feel like being Superman, try being Clark Kent instead.