Home Remedies for Numbness Numbness in feet and hands refers to lack of sensation. It is quite a common problem.Causes for numbness are exposure to cold materials, compression of nerves, injury of the nerves, too much alcohol drinking, fatigue, smoking, lack of magnesium and Vitamin B12 and deficiency of proper amount of physical activities. Sometimes, due to certain physiological complications like diabetes, multiple sclerosis, migraines, hyperthyroidism and many others, numbness may be the result. The major symptoms of numbness are