Stress seems to be the culprit of many problems in the body. As we discussed on the previous page, it can lead to weight gain. It may also cause sleeplessness and anxiety. Anxiety can increase your heart rate, make you sweat more and make you feel flushed [source: Mayo Clinic]. These are also symptoms of heat intolerance. So by treating your stress and anxiety, you might be able to take care of your body's discomfort with heat, as well.
There are a number of ways to reduce stress and stress-related illnesses, including exercise, nutrition, life skills development and prescription medications. Another option might be magnesium. Magnesium has a calming effect on the body and can aid in anxiety reduction and restful sleep.
You might first try to increase your magnesium intake by consuming foods with higher concentrations of it, like cashews, Brazil nuts, pumpkin seeds, rice bran, buckwheat, kelp and coconut water [source: Walling]. If you feel you're still not getting enough, a supplement may help. However, because magnesium can cause loose bowel movements, you may want to start with a small dose at first.