Human cells use oxygen for fuel. Breathing is the primary mechanism by which oxygen enters the cells. My teacher told me this stuff when I was a baby in elementary school.
What is up with people just ignoring the content of the message that they are replying to and either repeating what they said before or reply to something that was never said? This seems to be more and more common in HN these days.
Wow, those scientists went to the wrong elementary school. You sound smart, they usually don't even let toddlers into elementary school, much less babies.
