How to strengthen your immune and protect yourself from viruses A study of modern Spanish the vital role played by Vitamin "D" or "D" to support and strengthen the immune system of humans, where it indicated that low levels of vitamin "d" blood makes a person more susceptible to bacterial infections, tumors and autoimmune diseases, and stressed the need to enjoy the rights with high levels of what is known as the "sunshine vitamin. " One of the main sources of vitamin "d" eggs and dairy products, salmon, mackerel and tuna, as well as can be obtained through exposure to the sun, where the UV activate and configure. Turning the study to the interpretation of one of the phenomena puzzling, for it revealed the reason for increased rates of human exposure to infections viral greater in the spring and autumn, and attributed to the fact that the days are short in that period, in addition to the sun's rays are relatively weak, which reduce...