Wearing cotton-padded jacket in summer indicates that the elderly feel abnormal, or have hypothermia. It is suggested to check thyroid function and observe whether there is hypothyroidism. If the diagnosis is hypothyroidism, you can take thyroid hormones regularly, such as Eudragit treatment, and you can return to normal feeling after controlling thyroid function. Hypothyroidism will lead to a decline in the metabolic rate of the body, which will cause a series of symptoms, including abnormal thermoregulation, easy to catch a cold, fatigue, physical decline and so on.