What Causes Hot Flash?

Hormonal changes of menopause are mostly the common causes of hot flash but can be affected by lifestyle and medications. There is a direct effect on the hypothalamus when the level of estrogen on the body has diminished. Hypothalamus is the part of the brain and also referred as the thermostat of the body. Hypothalamus is responsible in controlling sleep cycles, appetite, body temperature, and sex hormones. The drop of estrogen level on the body somehow confuses the hypothalamus.