1, warm feet. "A cold starts with the feet", and we need to buy good shoes and socks for the elderly to help them keep their feet warm. When buying shoes and socks, we should take into account the characteristics of thin subcutaneous fat and poor blood circulation of the elderly. We can choose socks with good thermal performance such as wool. If you don't go out often, it is advisable to wear cotton shoes with cloth soles, which are softer.

2. Add more iron in winter. Iron participates in the synthesis of heme containing iron in human body, which improves the oxygen carrying capacity of blood. Therefore, the oxygen supply in peripheral tissues of people with iron deficiency will be reduced, and the energy metabolism of human tissues will be blocked, and naturally they will feel cold due to insufficient heat production. Therefore, the elderly should pay more attention to supplement iron-rich foods, such as lean meat, fish, animal liver, egg yolk, beans, celery, mushrooms, black fungus and so on.

3. You can eat more foods containing iodine. Hypothyroidism in the elderly will cause poor local and systemic blood circulation, especially in the limbs, leading to cold hands and feet. Iodine contributes to the synthesis of thyroxine in the body, improves the basic metabolism of the human body, and then produces thermal effects.