John and Sharon Witcombe both have their degrees in Community Health Education and have helped hundreds of people transition to healthier Immunity Enhanced lifestyles. They have worked with the CHIP Health wellness program and have taken around 500 people through this 30-day course. Before CHIP came on the scene, the Witcombes put together a 13-week Staywell program which was similar to the CHIP program. They used this in Ireland for several years when they were living there in the mid-1980s.