Why do those achieve nauseated while overheated?

Whenever I get overheated, I touch nauseous. Why is this?Why do those achieve nauseated while overheated?
Dehydration, primarily your body's way to update you that you need to thieve it easier and drink some water
the body can lone handle so much grill and something has to grant
i have alike thing, i meditate its because you might be dehidrated or your body just cant button to much heat , if you are out contained by the hot heat try to maintain a bottle of cold water beside you or a wet handkerchief, that seems to facilitate me and splash it on you face and décolletage or chest , rub some on you arms also . hope this helps
your body is losing fluids. drink pleanty of hose down before doing anything stressful surrounded by the heat