Examiner.com | B blood type north Indians at heart risk Hindustan Times Going by the findings, a third of India's population has some protection against heart disease since blood group O+, with blood group B+, is found in one in three people, according to Indian Red Cross Society data. "Blood group B+, however, is present ... 'Blood group could determine the risk of heart disease' AB blood type has highest risk of developing heart disease says Harvard study |