Fast food diet increases inflammation and activates the immune system; Surfers have a higher amount of drug-resistant bacteria in their gut compared to swimmers; Melanoma is a dangerous cancer that is hard for the immune system to detect; Definition of obesity via the BMI calculation; A question about alkaline issues and cancer, and fighting inflammation; Perthes disease is a rare bone disease that disables the hip joint; How to measure carotid artery plaque and diets to reduce it; What are mitochondria? What one or two things can we do to reduce inflammation? Discussion of collagen peptides, bone broth, turmeric and breakfast; The various flu strains and quest for a universal flu vaccine