What Causes Black and Blue Marks?
What Causes Black and Blue Marks? If you fall or receive a sharp blow, you may get a painful bump that soon turns black and blue. When you b
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Blood
How Does a Scab Form?
How Does a Scab Form? If you accidentally cut your finger, blood flows into the wound from tiny blood vessels in your skin. But your finger
Why Do You Shiver When You Are Cold?
Why Do You Shiver When You Are Cold? When your body gets cold you can help it warm up by doing some kind of exercise. If you do not do that,
How Will You Explain Coffee-ground Emesis?
How Will You Explain Coffee-ground Emesis? Coffee-ground emesis is the term used for when someone has episodes of vomiting that resembles us
What Do We Call a Person Whose Job Is to Collect People’s Blood?
What Do We Call a Person Whose Job Is to Collect People’s Blood? Sometimes we need to have blood tests to see what is making us sick or some