Phlebotomy refers to drawing blood from a person’s vein with a needle. Lab tests on blood samples are important as they measure different blood components and provide information that can lead to a ...

Your body regularly loses water through sweating and urination. If you don’t replace it quickly enough, you get dehydrated. People at risk include athletes, those who work in the heat, older adults, ...

A dehydration headache describes a type of headache that a person may experience when the body loses too much fluid and electrolytes. Replenishing fluids can often treat a dehydration headache. There ...