Research shows that autoimmune diseases are on the rise, yet there is still a great deal that we don’t know about their immunological basis. While most scientists point to both genetic and environmental factors as potential causes, much uncertainty remains.

Autoimmune diseases occur when the body’s immune system turns against itself. Rather than defending against harmful invaders, the immune system is actually involved in causing or perpetuating illness.

So, which is more important in our health outcomes when it comes to autoimmune ...