Got a lot on your mind? Your overloaded brain could compromise your workout, found a new study in the European Journal of Applied Physiology. So, this should apply to those guys standing around the gym with the phone stuck to the side of their heads at the gym. Unless you are an on-call doctor, give your phone a rest while at the gym, detach for just this short time, and have your time working out be just about you and what your are currently engaged in.

Researchers asked volunteers to do an isometric shoulder exercise until they had to quit because of fatigue. The kicker? They had to perform the move while doing mental arithmetic. When calculating the math, the subjects reached fatigue and lost strength faster than when they only concentrated on the exercise. Continue reading →