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How Your Blood Group Influences Your Chances At Heart Attack

Blood group types play an important role in determining chances of an individual of suffering from the fatal heart attacks. Read ahead to know more.

Tanya Srivastava
Written by: Tanya SrivastavaPublished at: May 11, 2022Updated at: May 11, 2022
 How Your Blood Group Influences Your Chances At Heart Attack

Heart disease is noted to be one of the leading causes of deaths globally. The most vital behavioral risk factors of heart diseases and stroke are unhealthy diet, physical inactivity,  and tobacco or alcohol consumption. The effects of behavioral risk factors may differ from person to person. These effects generally include and show up in individuals in forms of raised blood pressure, raised blood glucose, heightened blood lipids, and overweight or obesity. These are also known as the“intermediate risks factors. They are measured in primary care facilities and indicate an increased risk of heart diseases such as heart attack, stroke, heart failure and any other heart related complications.

Risk Factors Of Heart Attacks

There are 4 major risk factors that cater to the complications of heart attacks, they are as following:

  1. High blood pressure
  2. High cholesterol
  3. Smoking
  4. Blood group

Blood group types play an important role in determining the chances of an individual in the likeliness of suffering from the fatal heart attacks and strokes.

Blood is divided into four types viz-a-viz A, B, AB, and O. A person's blood group is determined on the basis of the presence or absence of antigens in red blood cells i.e. RBCs. In addition to the A and B antigens, there is a third antigen which is known as the Rh factor. So, for example, if someone belongs to blood type A but lacks the Rh factor, they are in the A negative group. About half the population globally is type O, which means the other half have either A, B, or AB.

It has been noted that people with blood type AB are 23% more likely to develop heart disease than others from different blood groups. On the other hand, people with type B blood group have an 11% increased risk, 5% increased risk for those who fall in the A blood group.

OnlyMyHealth editorial team interacted exclusively with Dr. Sanjay Kumar is Director and Head Department of Cardiology at Fortis Escorts Hospital who elucidate on the topic by telling that the blood group correlation with cardiovascular disease is not very strong. However O group people are  less prone and AB group type are the most prone. Albeit, the reason for this is also not clear as most likely O group people have decreased levels of certain clot forming proteins. 

Also Read: Heart Attacks Can Be Detected By This New Artificial Intelligence

Blood clots play a vital role in the occurrence of heart attacks, as they tend to block the coronary artery and starves the heart muscle of oxygen and nutrients, resulting in a heart attack.

Blood groups should be considered a stringent factor in determining risk assessments for cardiovascular prevention, in combination with cholesterol, age, sex and systolic blood pressure. Therefore, it is possible that people with an A blood group should have a lower treatment threshold for diseases like dyslipidaemia or hypertension. However, the medical experts elucidates that there is a need to do further studies in order to validate if the excess cardiovascular risk in non-O blood group carriers which may be amenable for proper treatment.