Lowered Temperature

Temperatures below normal may indicate thyroid dysfunction, also called subclinical hypothyroidism. This can occur even when thyroid blood tests are normal. Lowered body temperature can also occur following physical trauma, sometimes called “post-traumatic hypothyroidism.” Low thyroid function may also have a close relationship with hypertension.

In addition to low temperature, other signs and symptoms associated with low thyroid function include mental and physical fatigue, weight gain, depression, cold hands and feet, and crying spells. Those who feel good only after exercise stimulation, even a short, easy run or bike ride, may also have a subclinical hypothyroid condition; this stimulation brings body temperature closer to normal.

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A common group of drugs can also reduce body temperature. NSAIDs interfere with the balance of fat and can decrease body temperature.

Sometimes low temperatures occur only at certain times of the week or month. This can occur in both men and women, and is associated with changes in hormones. It’s best to take your axillary temperature in the morning upon awakening, before getting out of bed. Keep the thermometer under the armpit for a full ten minutes and record the result in your diary. Once you get up and move around, body temperature may rise slightly.