The growing popularity of paintball opens up a realm of injuries beyond those that affect participants in more mainstream sports, Mian says. Paint pellets, which are about the size of a dime and are fired at high rates of speed, can cause abrasions or bleeding inside the eye, as well as cataract formation. The impact also can cause retinal detachments and lacerations of the entire eye, leading to some vision loss, Mian says. “The injuries related to paintball can be severe enough to lead to blindness in thirty percent of individuals who suffer these injuries,” Mian says. “Most eye injuries related to paintball happen when participants are not using protective eyewear or when they take off their eye protection due to fogging or splatter of paint on the surface.” In the past five to ten years, he says, the Kellogg Eye Center has started seeing a rapid increase in paintball-related injuries as more and more people, especially teenagers, have been participating in the sport.

He points to standards set by the American Society for Testing and Materials for protective eyewear. Use of approved eye protection devices can significantly reduce or eliminate injuries associated with paintball, Mian says.

People should seek medical attention for their eye injuries when the injury involves loss of vision that is not resolving or significant pain, the person should seek immediate advice from an eye care professional or primary care provider.

Other times to contact your doctor: When there are floaters or flashes, pain around the eye, or a bruise around the eye, which may indicate a bleed inside the eye, damage to the lens or retinal detachment.

Facts about sports-related eye injuries:

Dehydration can limit the body's ability to regulate body temperature by sweating and/or skin blood flow and may contribute to heat exhaustion, heat injury, and exertional heat stroke.

The college takes the position that the athletic performance, physical activity and recovery from exercise are enhanced by optimal nutrition, the paper recommends appropriate selection of fluids and food, timing of intake and careful supplement choices.

Unfortunately most athletes don’t even realize when they’ve suffered from a concussion. There can be serious results if the brain isn’t given the chance to heal properly following a concussion and it receives another injury.

The last thing you need as a college athlete is a bout of the flu during the playing season. You may be able to avoid the flu or complications with these simple steps.

A good warm-up is essential for reducing the risk of injury in both competitive sports and low intensity workouts. Warming-up is important because it increases blood flow to the muscles.

"It's a mistake to think that exercise (output) without the right kind of energy intake will burn calories and reduce body weight appropriately," said Benardot. "The important thing is to be in balance, so that resting metabolism stays high enough."

The American College of Sports Medicine (ACSM), together with the American Dietetic Association (ADA) and Dietitians of Canada, has recently released a joint position statement, Nutrition and Athletic Performance.

Exercise has now been shown to help people with different types of cancer cope with the  functional and fatigue decline that can result from the treatment for the disease. A new study has now shown  that men with advanced prostate cancer can also reap some of these benefits by Training with weights.

Depression was significantly lower, reductions in anger were evident, confusion was significantly lower, and even fatigue, while markedly elevated immediately after the weight lifting exercise, was reduced at the two- and three-hour marks.