Do diet teas and meal-substitute shakes work to lose weight?

I've been trying to diet for over two years. My goal is to lose about 25 pounds, but the most I've been able to get is 15, and I can hardly keep it off. I concentrate on eating very little and since exercise is so hard to keep up, I pretty much starve myself to death. I manage to maintain the weight for a month, and then I lose control again. I've been thinking about the various diet products in the market, such as diet teas, herbs, meal- substitution shakes, and other medical products. I'd like to know what kind of side-effects they have, and how effective they are. (Some boast a seven-day plan, but that seems hardly believable.) Also, I'd like to know how well-researched the information is on these products (i.e., are they long-term enough to cover all the side-effects?) As for aspartame, is it really harmless, or is it just not researched yet?


How can I help my friend whose mom has cancer?

The mother of one of my best friends from high school was diagnosed with liver cancer a few months ago. She is quite ill and in a lot of pain. She's been in and out of the hospital lately and things don't look so good. My own father was diagnosed with prostate cancer a year and a half ago, but he is really doing quite well (with medication, treatment, etc.). My friend's mother will probably be dead within six months to a year, so I'm not going through an immediate crisis.

My question is: What things should (and shouldn't) I be saying to, and doing for, my friend? I try so hard to be there for her but I really don't know what she's going through. She is very matter-of-fact about the fact that her mom is going to die. But I'm sure there's something I could be doing, isn't there? I hate feeling like I'm actually making her feel worse! Could you give me some idea of what she might be going through right now and how I could help? Even if it's a method for taking her mind off it occasionally (if that's a good idea).


How many rest days should I take between runs?

I wanted to know how many days of rest is recommended between workouts. I heard it was three days on to one day off...is this enough? I workout on a treadmill for 50 minutes every day and have for the last 14 months. I was not aware of how rest played a very important role until I recently read a brief article on it. I guess my question is, do I need to take that day of rest and how important is it?


What should I do if my classmates seem to breeze through coursework while I struggle?

All the people in my major seem to breeze through homework, tests, and absorb every lecture like they've heard it a million times. This leads me to believe that I might have chosen the wrong major, even though it is what I really want to do. I'm already a senior, so changing majors now is out of the question for me, since I've already made all the arrangements for graduation. I know I will graduate with a very low GPA... not even high enough to get into graduate school in my major. The coursework that I'm headed towards in my last two semesters seems like total rocket science to me and asking for help, even from close friends in my major, is very embarrassing. I normally wouldn't mind asking my friends for help, but they have very belittling things to say about other people who don't understand the concepts. Plus, everyone that tutors for my major is also in my classes, so asking for help there is also impossible. I feel that if I don't get help and start understanding things essential to my major, I will completely abandon the idea of going to graduate school, or even trying to get a job related to my major. I don't want four years of schooling to go to waste... what should I do?