Never Sweat ... is it a big problem ?

One of my friends has this condition and from what I can tell, it can be serious. She can't get too hot because she can't sweat and this is your body's way of cooling down. Her doctor has her to stay out of the heat and sun and be sure she is comfortable with her temperature at all times. If she gets too hot, I have saw her pass out and this past summer even go into a seizure from it. There is a technical term for it but I can't remember what she called it. It can be serious and is best treated by a specialist. I believe it is caused from deformation of the pores or something similar to that. I woould check into seeing a specialist with her.