"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.

Extended data:

Precautions for winter diet:

1, the food should be fragrant. Old people's appetite is reduced, so they should pay more attention to the preparation of food and pay attention to the allocation of color, fragrance, taste and shape. In addition, an elegant, quiet and tidy dining environment; Dining in groups or groups can improve the elderly's interest in eating.

2, the taste should be light. The food should be light, not heavy. It is recommended that the daily salt content should not exceed 6 grams. It is suggested that the daily food composition of the elderly is: cereal 150-250g, fish and shrimp lean meat 100g, beans and their products 50g, fresh vegetables 300g, fresh fruits 250g, milk 250g, edible oil 30g, salt 6g and sugar 25g. Drink less and drink more water.