Yale University researchers may have just discovered one trigger for the myriad and mysterious range of auto-immune diseases. And it’s probably in your pantry.  In their study, mice that ate salty meals produced T cells that attacked other immune-system cells. When you consume excess sodium, these harmful T cells may form in your gut and move throughout your body, causing diseases in other organs, says study author Dr David Hafler. His team will 
conduct research on people next – but until then, try limiting yourself to one teaspoon 
or less of sodium a day.