These hard crystals develop in the kidneys and can be as small as a grain of sand or ... study suggests that eating more of a certain vitamin could protect against kidney stones.

Unbalanced routine and unhealthy eating habits lead to deposition ... The size of kidney stones can range from small particles of sand to large stones the size of a golf ball.

Analysis from the CDC has found that Leishmania mexicana, a tropical, flesh-eating parasite that causes skin sores and can create long-term scars, has likely been spreading locally through sand ...