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Cold flashes or chills refer to an intense sensation of cold. These could be caused due to hormonal imbalance, hypothyroidism, or anemia. This write-up provides information on the remedies for chills. During perimenopause, women often experience hot flashes, which refer to a sudden rush of heat through the body.
When it is hot outside, or a room is overheated, these symptoms can become exaggerated. They can also lead to night sweats and insomnia. Other Causes for Hot Flashes. When someone experiences hot flashes, a doctor can tell with a simple blood test if the problem is related to menopause or due to some other reason. 1  Menopause usually occurs in the 50s, so when someone much younger has hot flashes, physicians will often look for additional causes. Some of the most common ones include: 1  Thyroid problems, such as hyperthyroidism, which causes an overabundance of thyroid hormone, can increase the bodyâs metabolism and lead to hot flashes and sweating. 2  Food and drink, including spicy foods, caffeine, and alcohol, can trigger hot flashes.