What to do if your stomach hurts really bad

Which of these is a sexual stereotype?

Not type of personal health monitor can calculate the number of calories a person burns. true or false?

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.