Anhidrosis

Anhidrosis can affect a large portion of the body that prevents proper cooling, so vigorous exercise, hard physical work and hot weather can cause heat cramps, heat exhaustion or even heatstroke. (From mayoclinic.org)

"Hyperthermia and heat intolerance are distressing symptoms in patients with anhidrosis. Body cooling devices are an integral part of management of these patients."
An Innovative Cooling Jacket to Combat Heat Intolerance in Children with Anhidrosis.

The information on this site is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment.  Please consult a licensed healthcare practitioner before using any hot/cold therapy or body cooling product for a medical condition. 
The following products may help: