Most people when they are about to catch a ball they have there hand ready but soft, try having your hand ready but at a angle and when you catch it tighten your hand mucsles as fast as you can, you will feel less sting
Egyptian they were the first one who practice health care
Starvation, too much exercise, dizziness, fatigue, slow growth, brittle nails, etc
Herpes labialis is what you are looking for