And since the cold numbs your nerves at the injury site, you don’t feel much pain as long as you apply ice.
Nearly everyone gets hemorrhoids at some point in his or her life. So what exactly are hemorrhoids? Find out on this Moment of Science.
Ever wonder if you can actually turn blue while holding your breath? Find out on this Moment of Science.
The blood of an insect functions differently than the blood of a human. In humans, blood gets its red color from hemoglobin, which travels through blood vessels carrying oxygen from the lungs to the rest of the body. Insect blood, however, does not carry gasses and has no hemoglobin.