Can we predict that natural selection will weed out genetic disease over time? Sickle-cell trait haplotype distribution shows the genetic advantages of this mutation. In the deoxygenated ...

Doctors noticed that patients who had sickle cell anemia, a serious hereditary blood disease, were more likely to survive malaria, a disease which kills some 1.2 million people every year.

Columnist Mary Shaniqua offers examples of some symptoms of sickle cell that are lesser known than fatigue and a ...