What are the long-term side effects of substituting Vivarin for sleep? Last semester, I averaged only about three hours of sleep a day, and it doesn't look like this semester will be terribly different.

Thanks in advance.

After every meal, I get serious gas, bloating, and other yucky stuff. This is with ALL kinds of foods. I'm taking fiber for constipation, which is cool, but I get messed up even long after I take my fiber. What's the story?

I have had terrible stomach problems for a few years now. My doctor says it's due to my love of greasy and oily foods, and that I should concentrate on eating healthier, broiled foods. Do you think if I continue on this unhealthy eating cycle, that I could develop gallbladder problems? Also, do you think my diet contributes to my acne-prone skin? Thanks for your help.

1) I've suffered weird digestive things when I have my period. The way I have heard it explained in my MCAT class is that the same hormone that causes the smooth muscle of the uterus to contract unfortunately works on all of our digestive organs as well, particularly the large intestine. So that's how I've come to grips with the apparent confusion of the digestive processes during my period.

2) Does a person's menstrual cycle regulate her bowels in any way? I have had some problems. The week before I get my period, I have loose bowels and the week afterwards I am quite constipated. Is this normal? Is there anything I can do?

I go through phases where, when I sleep, I don't have any dreams (that I remember, at least). I sleep well and I wake up rested. Every few months I go through a week or two when I have nights full of incredibly vivid dreams and I wake up remembering at least five or six of them. Because of all these vivid dreams, I wake up feeling far less rested than I do when I don’t dream at all. Is there a particular reason for this? Does dreaming more at night mean your sleep is less restful?