The first blood group is considered the most beneficial for health.
People in this group are less likely to get serious diseases, including pancreatic and stomach cancer.
They also have fewer heart and memory problems, reports the National Library of Medicine .
Research shows that blood type affects the overall health of the body.
Thus, people with the second blood group have a higher risk of developing malaria.
Experts believe that the first blood group protects against diseases more than others.
Such people have fewer molecules responsible for blood clotting.
Low clotting helps prevent blood clots and improves brain and heart function.
Research also shows that people with blood type O, due to their resistance to disease, tend to live longer.
Therefore, the first blood group reduces the risk of serious diseases, helps to maintain health and increase life expectancy.