Viagra slows the spread of malaria, study finds

Viagra doesn't just have a stiffening effect on men's anatomy, it also makes the one-celled parasite that causes malaria more rigid.

Using an artificial spleen, the team found that certain drugs such as Viagra, also known as sildenafil, could stiffen these cells by inhibiting an enzyme that would normally make them squishy. The stiff cells are then cleared by the spleen.