When it comes to blood groups, many studies and cultural beliefs suggest that certain types may be linked with stronger immunity. Among them, blood group O is often considered to have the strongest immune system compared to others.
People with blood group O are known to have fewer risks of developing severe complications from some infections. For instance, during outbreaks like cholera and even COVID-19, research showed that individuals with blood group O were less likely to face severe illness than those with other blood groups.
This is partly because their blood lacks certain antigens (A and B), which makes it harder for some pathogens to attach and multiply in their bodies.
Another interesting fact is that group O individuals tend to have lower chances of suffering from heart-related diseases, though they may still be vulnerable to ulcers. Their natural antibodies against both A and B blood types give them a wider protective shield, strengthening their immune response.
However, this does not mean people with other blood groups are weak. Every group has its strengths and weaknesses when it comes to health risks.
Overall, lifestyle choices like eating healthy, regular exercise, and stress management remain the biggest factors in building strong immunity, no matter your blood type.