Benadryl has been associated with worse school performance and, in one small study, impaired people’s ability to drive more ...

A study from a University of Oregon researcher and published in the Journal of Applied Physiology, finds that antihistamines may inhibit muscle growth and recovery from endurance exercise.

Certain medications can affect your body's ability to tolerate hot weather. Diuretics, beta-blockers, and some antipsychotics ...