This causes the body to launch an attack and begin fighting the excess TNF , which leads to more inflammation , which results in more TNF . More than 1 million people in the United States have Crohn 's . Comment: Those with Crohn 's include Olympian Carrie Johnson .
More than 1 million people in the United States have Crohn 's . Comment: Those with Crohn 's include Olympian Carrie Johnson .