Conventional Weight Training Can Even Hurt Your Eyes

In a 2006 study, researchers found that conventional weight training isn't only dangerous to your ligaments, muscles, and sense of well-being...it's dangerous to your eyes: Holding your breath while you're weight lifting can increase the risk of developing eye disease and potentially blindness, a study says. Weight lifters who don't breathe while they're training can experience temporary increases in eye pressure that could heighten the risk of developing glaucoma... Add this to the mile-long list of conventional weight training drawbacks.