Some mental health medications can interfere with your ability to sweat, leading to heat exhaustion or heat stroke. Psychiatric Medications and Heat Exhaustion http://www.healthyplace.com/blogs/borderline/2012/06/hot-enough-for-you-psychiatric-medications-and-heat-exhaustion/ Psychiatric Medications- look up the side effects of your psychiatric medication here. http://www.healthyplace.com/other-info/psychiatric-medications/psychiatric-medications-pharmacology/