Do electronic muscle toners work?

I know most of us have seen the ads to buy various muscle toning equipment that uses electric pulses to "build more tissue" (hypertrophy), and I was wondering what you thought about this way of "toning muscle." Also, if you knew where else I could go to further my research on these sorts of devices?

Thank you very much for your help in advance.


Am I under eating and overexercising?

I am very concerned about my eating and exercise habits. I'm a first-year, and since I got here last fall, I've lost about 35 pounds. I've been exercising almost obsessively and eating a rigid, low-fat diet. I try to eat about 2000 calories a day, but still feel hungry a lot (especially in the morning) and still seem to be losing weight at the rate of about a pound a week. I'm 6'0" tall and weigh 133 lbs. right now; my family and friends are all worried and although I keep telling them I'm not sick, I wonder if I am. I've seen a nutritionist in Health Services; she gave me some advice about good nutrition and what I should be eating, and I've been trying to follow her guidelines, but it's gotten very hard for me to know what is a "normal" diet. Am I anorexic? If I am, what can I do to help myself? I know I could never go to counseling; I'm too independent. Can you give me any advice?


How can I stop being jealous?

I am in a wonderful relationship with my girlfriend and we love each other very much, but I can't get over being jealous of certain little things. It is starting to get so bad that it is causing arguments between us. I try to control it, but sometimes I just can't help it. When she tells me any little thing that involves her with another guy, my first reaction is to get mad. How can I get rid of my jealousy, or change it?


Should I get a new IUD with each new sexual partner?

I recently had an IUD inserted. I'm not currently having sex, but wanted to be prepared as I am seeing someone who I may become sexually involved with.

My concern is I was told the IUD would need to be removed if I had sex with a partner and then changed partners later. This IUD is a 5-year IUD and the cost was quite a bit. If I have sex now and then stop for a year (or any period of time) and was to become sexually involved again with another partner, why would it need to be removed? If STDs are not an issue, does it still need to be removed?