The influenza virus or flu is a contagious respiratory illness that can generate mild, moderate, or severe symptoms. Healthy ...

Lindsay Curtis is a health & medical writer in South Florida. She worked as a communications professional for health nonprofits and the University of Toronto’s Faculty of Medicine and Faculty of ...

Do you often ask yourself, "Why am I always the one getting sick? Why is my immune system so weak?" These questions might linger in the back of your mind, especially if you're frequently down with the ...

Common variable immunodeficiency (CVID) is a type of genetic condition called primary immunodeficiency disease (PIDD) that causes low levels of antibodies (protective proteins) in your body. This ...

Zinc also contains antioxidant properties that protect cells from oxidative stress and inflammation. It plays a role in ...

People whose immune systems don't work well because of disease or medications have lost their best defense against COVID-19. Although the monoclonal antibody Evusheld was never widely used by the ...

Low levels of Vitamin D have also been linked to conditions like anxiety and depression, can result in bones becoming thin and brittle, and lead to rickets in children and osteomalacia (softening of ...