The immune system exercises constant vigilance to protect the body from external threats, including what the person eats and drinks. A careful balancing act plays out as digested food travels through the intestine. Immune cells must remain alert to protect against harmful pathogens such as Salmonella, however, their activity also needs to be tempered since an overreaction can lead to too much inflammation and permanent … Continue reading Study finds neurons in gut regulate the immune system to control inflammation.