Nicotine can be found in cigarettes and comes from tabacco
DO NOT SMOKE PEOPLE
I REPEAT DO NOT SMOKE
One way in determining your fitness level is trying to do a Full Sprint Run and holding your breath for as long as you can. That way you can determine your cardiovascular capacity and lung capacity. On improving your fitness levels you should do swimming, jogging and of course a balanced diet.
The answer is 10 billion. <span />
