False because mainstream smoke is defined as smoke from a cigarette or pipe. Second hand smoke is smoke that has been inhaled by someone then exhaled, making you the "second" one to breath it :)
You don't have to eat right now but food is nourishment and meditation is good for you exercise is good for you but food is nourishment for the body like meditation exercises nourishment for the soul
Answer:
<em><u>"The number of squares between each QRS complex and multiplying by 40 milliseconds. Gives you the cycle length of a patient's heart rate. You then divide 60,000."</u></em>
