Scientific studies have shown that people with blood group IV and a negative Rh factor are more vulnerable to health problems.
Carriers of the fourth blood group are more prone to various infections and diseases than others.
The risk of death from blood loss among those with blood type IV reaches 28%, writes Life .
For people with other groups, the risk is only 11%.
In addition, carriers of blood type IV often have problems with blood clotting.
At the same time, people with blood groups I and II and a positive Rh factor usually get sick less often.
These blood types were more common among our ancestors, allowing them to better adapt to the environment.
Thus, scientists recommend that people with blood type IV closely monitor their health.
