Blood circulation issuesDo your hands often feel numb and weak? If so, this could be a sign that a nerve is pinched or a sign of cardiovascular disease. Vitamin deficiencyDo your hands often feel tingly and unsettled? If so, your body may not have the proper nutrition (vitamins B1, B6, B12 or E). If you want to find out what your deficiency is then you should visit your doctor to take a test. DiabetesDo you oftentimes feel a tingly sensation that starts from your foot then rises to your hands? If so, this could be a sign of early diabetes. ExhaustionIf you normally handle heavy objects and feel pressure or a tingling sensation then this is because your hands are exhausted. The nerves in your hands are very sensitive and carrying heavy objects can add unwanted stress and pain. Spinal issuesIf you have issues with your spine then more than likely there will be damaged nerves. As a result, it will be visible on your hands. Try doing yoga and stretches to strengthen your back muscles. Carpal tunnel syndromeDo your hands oftentimes feel numb and tingly during the night? If so, this could be an early case of carpal tunnel syndrome because there isn't enough blood flow movement in your hands. If this happens then try shaking or stretching out your hands on a regular basis. Buerger's diseaseAre your fingers very sensitive, white, or even blue? If so, then this could be a sign of a rare condition called Buerger's disease which is caused by inflammation of the arteries, veins, and vessels. The main cause is due to high tobacco usage. Depending on the severity, it could lead to a severe infection or even gangrene and amputation of the limbs. If you feel that you are affected by any of these, it's always best to consult with your doctor or a medical professional.Check out the video above to see what the warning signs for the diseases and conditions mentioned above look like!