How do tattoos work?

How do tattoos work? I mean, if human skin cells are always shedding and reproducing themselves, how are the pigments of a tattoo able to stay in the skin for so long?


What’s the deal with fats in different types of avocados?

1) What about avocados? I know they don't contain any cholesterol, but they are high in fat so I have avoided them. Now, however, I am reading that the kind of fat they do contain may be useful in lowering cholesterol. Do you have any further information on this?

2) I love avocados and have heard that the different varieties have different health benefits and some are less fattening than others. Please can you tell me about different varieties and which are best.


Is canola oil toxic or is this another urban legend?

I recently received an alarming e-mail regarding the dangers of eating Canola oil. Apparently it is made from rapeseed, which is supposedly highly toxic and has been shown to develop cancer in rats. The e-mail also referred me to an article by a Tom Valentine called "The Canola Oil Report." I located the report, read it, and quite frankly, threw out the remaining canola oil I had in the kitchen. Is there any truth to this article? And if there is, surely this is criminal.


Can skin become dependent on moisturizers?

Is it possible to become dependent on moisturizers?

I suffer from dry skin and each Winter go through about half a gallon of moisturizer all over my body by Spring time. It's starting to feel like my skin is getting dependent on the moisturizers, meaning that it always feels like I need them, even if it is a humid season. It's like the skin gave up on circulating its own moisture because it is expecting it from moisturizing cream. Is this just my imagination? Or should I back off on the moisturization?


Is diabulimia a risky weight management strategy for type 1 diabetics?

I recently read an article in a magazine regarding a new disorder termed "Diabulimia." Supposedly, this is a disorder displayed by women with type 1 diabetes in order to lose weight. The women with type 1 diabetes, who take insulin shots, compared these shots to "injectable fat" and therefore they skip their shots all together.

The reason why this topic is so surprising to me is because I am a type 1 diabetic and have been for almost 17 years and I have gained weight since beginning treatment. What happens to the body when this occurs? Also, if a person tries to treat the "diabulimia," will all the weight that was lost be gained right back when she begins to inject the shots again? What other method of losing weight would you suggest for someone like this? I would never risk my life in order to lose weight, but I would still like to learn about it because it is something I have never heard of. Thank you so much!


How to gain weight?

I am a 22-year-old male. I would like your advice as to how to increase my weight. I am extremely thin, and would like to put on weight for both appearance and strength purposes.

I believe that thin people have a very fast metabolic rate. Is there any way of slowing this rate down? Does it fall naturally with age? I have often been told that I should lift weights, but cannot find time on a regular basis to do so. I do, however, have time to do push-ups at home.

Anyway, I'd much appreciate it if you could give me guidelines as to how to increase weight, especially through diet. What kinds of food should I be eating? How many times a day should I eat? How big should the meals be? I hear the soybean is very nutritious — is this true; if so, what could I eat or drink that contains soy?


Is the lump behind my knee a cyst?

I have a one half inch lump inside the back of my leg two inches above my knee (there is no visible mark on the skin). It is not painful or bothersome in any way. An acupuncturist thinks it is a cyst. If it is, what kind might it be, what kind of treatment might I get, and how necessary is it?


Are washcloths and other body scrubbers bacteria factories?

My question is about the cleanliness of loofahs and other body scrubbers. Since they usually hang out in the shower where there is constant warmth and moisture, wouldn't they grow bacteria? How often should they (scrubbers) be changed or how do you clean them? The reason I ask is that I am experiencing some hives, and the only thing I can think that is causing it might be the scrubber gloves in my shower.