1) I have a large amount of course work, which is combined with a job and extra-curriculars, and while I want to succeed in all of them, I find that I simply don't have enough time, even though I currently sleep only 4 or 5 hours a night. I mentioned this to a group of my friends here at school, and it turns out they all take stimulants to help them manage jam-packed undergraduate life. The pills are called ADDERALL and PROVIGIL. I have acquired some for myself, but before I take them, could you tell me if either has serious health risks? I do not have any other health problems or take any other medications. A few of my friends tell me that they sometimes stay awake for as long as 3 or 4 days. If it is reasonably safe, that would be great! Thank you.

2) Given the fact that this is a top-notch school, it's total hoo-ha that you haven't included any info on all the non-hard core, but still illegal, "study stimulants." Is all this ADDERALL gonna do me permanent damage or what?

I smoke hookah on occasion, but am not a regular hookah smoker. Recently some of my friends have expressed interest in smoking hookah but are concerned about the health side effects; needless to say, for very legitimate reasons. However, non-tobacco shisha, made simply of herbs and molasses, claims to be a healthier alternative to regular shisha that contains tobacco. Though I can assume it is not without its shortcomings, is it still healthier then regular tobacco products, as it claims?

My friends and I occasionally (once a week or so) like to smoke the "Hookah" or sometimes referred to in Arabic as an "argeelay." The tobacco that it comes with smells really good and comes in all kinds of flavors, such as apple, mango, mixed fruit, etc. Anyway, I consider myself to be pretty healthy in that I have never experimented with drugs, never smoked cigarettes, and rarely drink alcohol. My question is about the health effects of smoking a hookah. The rewards are mostly relaxation after a long day of studying for law school. The hookah provides this through smell, flavor, and sound of the water that filters the tobacco when you puff on it. However, I don't know what the health risks are. How does it compare to cigarettes? People say that it's much safer than cigarettes... and according to the packaging that comes with the tobacco, there are far fewer harmful ingredients... in fact, it's mostly tobacco and molasses. It's a very popular trend these days. It's time we get a good source of information. So what's the verdict?

I only smoke occasionally. I smoke when I go out to clubs, etc. (once or twice a week). I smoke about ten cigarettes each time. Is this likely to have an impact on my health?