There are many aspects that lead to numbness in the hands and legs of the elderly: 1. Physiological conditions, such as because of improper sleeping posture, resulting in pressure on one side of the body and poor blood circulation, there will be numbness in the hands and feet on one side. Pathological situation. For example, cervical and lumbar spine disease, diabetes, may cause patients to have episodes of hand numbness, foot numbness, but cervical and lumbar spine disease and diabetes caused by hand numbness, foot numbness is not the same, diabetes caused by the end of the limbs will be manifested as more obvious numbness. 2, if the cervical and lumbar spine disease caused by the side of the body, when the posture is not appropriate to appear. Older people who suddenly appear on one side of the limbs numbness, weakness, but also consider is caused by acute cerebrovascular disease, such as transient ischemic attack, cerebral infarction, minor cerebral hemorrhage.