Cold hands and feet are the reaction of insufficient internal circulation, qi deficiency, qi stagnation and yang deficiency. I suggest that you first find a Chinese medicine doctor to determine that you are yin and yang deficiency, and then make up for it appropriately. -This is personal experience!
At the same time, exercise more to promote systemic blood circulation; Secondly, eat more warm foods, such as mutton and yam, spicy food and foods rich in vitamins. Finally, it is also my most effective method: soak your feet with warm water at night. The water must not exceed three inches of my ankle, and it is best to soak for about half an hour. It would be better if we could grab some important foot bath drugs from some local health centers!
Another simple way is to buy some warm babies or warm stickers (available online and in supermarkets) to keep them warm all day.
I typed this word for word. It's all personal experience. Give me the best answer!