There are many reasons for numbness and cold hands, but most of them are caused by poor blood circulation, so it is advisable to exercise properly and improve your immunity so as to promote blood circulation. Numbness and cold hands may also be caused by cervical spondylosis, patients with cervical spondylosis should cure their cervical spine as soon as possible, only then can they cure their numbness and cold hands symptoms. Hand numbness and cold hands may also be a result of long-term overwork, resulting in the peripheral nerves losing nutrition and thus the symptoms. In this case, it is recommended to eat nerve-nourishing drugs, such as methylcobalamin. In terms of diet, eat more foods rich in protein, such as fish, eggs and so on. In particular, people with insufficient qi and blood often have numbness and cold hands, so they should pay attention to eating more red dates to replenish their qi and blood.