Why do mid-latitude cyclones âdie-outâ after they become occluded? (A) After a cyclone becomes occluded its warm sector no longer touches the core of the storm and can therefore no longer supply to the storm's core the energy associated with warm air uplift and the associated latent heat of condensation. 3.
Once the blood vessels return to normal size, you feel cool again. Hot flashes affect about 85% of women during the years immediately before and after menopause. Menopause usually occurs around age 51, but hot flashes can begin as early as 2 to 3 years before the last menstrual period. Hot flashes can last for 6 months to as long as 15 years after the final period. The average is two years. Some women have only a few episodes a year, while others have as many as 20 episodes a day.
A hot flash is a feeling of warmth spreading over the body that is often most strongly felt in the head and neck regions. Hot flashes may be accompanied by perspiration or flushing and usually last from 30 seconds to several minutes. Although hot flashes are a characteristic symptom of perimenopause, rare tumors, and other medical conditions may sometimes also cause hot flashes. Taking certain medications, eating spicy foods, and the consumption of alcohol have also been associated with the occurrence of hot flashes.