A．Eating more salt means more heart attacks.
B．Less salt is sure to reduce many heart-related diseases.
C．Eating less salt may lead to high blood pressure.
D．It's not clear whether eating less salt will have good results.
A．Most people consume similar amount of salt.
B．Americans eat less salt than the others.
C．Different people eat different amount of salt.
D．Salt is relevant to people's health.
A．They are about to be more productive.
B．They tell us to be more physically healthy.
C．They focus on the importance of habits.
D．They help people make more money.