Tar, carbon monoxide, nitrogen oxides, theyre harmful because they cling to the red cells in the blood and up to 15% of a smoker's blood may be carrying carbon monoxide round the body rather than oxygen.Smoking 'lower tar' cigarettes can increase the carbon monoxide levels as smokers inhale more deeply.Cigarette smoke has high levels of nitrogen oxide.
Hope that helps
a young girl lives at home with her obese mother. her mother seldomly cooks and when she does it's not healthy. she spends her days watching cartoon and snacking on chips and candies. when she goes to her next doctors appointment, she is informed that she is obese for her age and is at very high risk for diabetes.
on the other side of town there is a young boy who has not even begun puberty. his father is a champion bodybuilder and his mother is a yoga enthusiast. his father believes the earlier you start them on weights the better. he is shorter than the other boys his age but has much more muscle mass. when he visits the doctor, the doctor tells him he is in the lowest percentile for height.
False, eat more at the bottom which is vegetables and fruits.
Marijuana has been shown to increase cognitive ability, and can LOWER HIV Spread<span />