what is one of the most important life skills that all parents should teach their children as it helps children to learn how to control their emotions and impulsive behavior?

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

How does fluid in the body become lymph? how is it returned to your blood

Describe the concept of interval training. what is the benefit of this type of training?