The most common blood types are A, B, AB, and O.

My blodtype, O, was the first blood type, ancestral to the other main types. That explains some of the primal issues that make me and other O-types sensitive to stress, the response being anger, hyperactivity and impulsivity. But one of the advantages are the best traits including leadership, extroversion, energy and focus.

Thus in my case, to remain healthy one should adopt a diet and lifestyle taking blood type into account. Since it is vital to the body, depending on your type it affects acid levels in your stomach, biological response, defence and antigens, and your personality.

Type O people fare best on intense physical exercise and animal proteins and less well on dairy products and grains. The leading reason for weight gain among Type O’s is the gluten found in wheat products and, to a lesser extent, lentils, corn, kidney beans, and cabbage. Ideal exercises for Type O’s include aerobics, martial arts, contact sports, and running.

Type A people are more naturally suited to a vegetarian diet and foods that are fresh, pure, and organic. As Type A’s are predisposed to heart disease, cancer, and diabetes it cannot be emphasized enough how critical this dietary adjustment can be to the sensitive immune system of Type A. Type A’s prefer calming, centering exercise, such as yoga and tai chi.

Type B people have a strong immune system and a tolerant digestive system and tend to resist many of the severe chronic degenerative illnesses, or at least survive them better than the other blood types. Type B’s do best with moderate physical exercise requiring mental balance, such as hiking, cycling, tennis, and swimming.

Type AB people, having the most recent, in terms of evolution, of the four groups and an amalgam of types A and B, is the most biologically complex. For this group, a combination of the exercises for types A and B works best.