We are constantly being bombarded with bacteria and viruses that can make us sick We have an elaborate defense system that is designed to...

About your Immune System About 70 to 80 % of your immune system is in your gastrointestinal tract (GI tract). Anything that affects your...

We are constantly being bombarded with bacteria and viruses that can make us sick. We have an elaborate defense system that is designed...

Your Vitamin D level is important. It seems to have a direct link to outcomes of Covid-19 and protects against respiratory infections.