No, these fumes will not cause cancer nor will damage your hair. The only thing truly damaging your hair is blow drying it every day because it can dry it out, so try not to do that! It is not that bad though.
OK so if the person was unsuccessful even after changing his or her life style I believe the best option for that person would be to seek professional help from a doctor/health adviser.
1) One drug 7th graders and older should know about is Tylenol with the chemical name Acetaminophen. Tylenol is important because it is used for commonly not only amongst kids but also adults to treat muscle pains and to reduce fever. 7th graders should learn about how much Tylenol is necessary to help treat pains, in order to safely use it when they must.
I will answer more later, but I have to go
A.true feeling a abject is not vital the learning more about it.