It might smear your makeup, mark your clothes, mess your hair and smell a bit, but sweating is essential for your body to cool itself down. If we didn’t sweat, we wouldn’t be able to enjoy hot summer days without overheating and potentially suffering damage to our organs. Sweat glands are one of the defining marks of all mammals, which allow us to move between different climates. What’s more, sweating is another mechanism your body uses to rid itself of nasty things that may have built up in your body (nurses can even sometime identify a new infection in a patient just by the way they smell)
Vaccines—injections of dead viruses—have saved the lives of millions of people and are considered unparalleled milestones in the history of medical advancement. Throughout our lives we have been spared rashes, respiratory infections, fevers and even brain damage and permanent physical scarring thanks to dead diseases that were injected into us, preparing our immune systems to be able to identify the real, living thing should we ever encounter it.
Read more: 5 Gross Things That Are Actually Good For You