When exposed to the cold, your body can lose heat faster than it can be produced. Cold-related illness includes many health problems such as hypothermia, frostbite, trench foot, or chilblains, that occur when the body becomes too cold. Vitamin D in sunlight helps in reducing upper respiratory tract infections. You will get more vitamin D from getting more sunlight vitamin D helps immune system in fighting bacteria and viruses• Improves your sleep. Vitamin D synthesized in the skin converts it in the liver and kidneys and plays crucial role in maintaining calcium and phosphorus balance.
