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 TMJ and how can I get some relief?

1) What is TMJ? What kind of doctor handles this problem?

2) I have a rather odd problem. For the past several years, I have noticed that when I open my mouth wide to yawn or take a bite out of a sandwich, the right condyle of my jawbone slips laterally from the temporomandibular joint, making it difficult, and at times, painful, to close my mouth. I basically have to slip the condyle back into the socket; otherwise, it slips in by itself, which is what causes the pain.

Other than being inconvenient, this has not adversely affected me in any way that I can tell, except that I am now careful not to open my mouth completely when I yawn. I am reluctant to see a doctor about this because I cannot reproduce the situation at will, and don't know if the problem can be diagnosed or detected unless the doctor actually sees the condyle slip out.

Also, any time I have gone to Health Services, it seems that whatever the problem, they just send me home with a jar full of ibuprofen. What do you think is wrong? Is this problem serious? Does it deserve immediate attention? What type of doctor would I need to see and could I get a referral from Health Services?


What’s up with the acid in my throat?

1) I have had acid coming up my throat from my stomach for the last 3 weeks. It comes up and just burns my throat. What is it? Do I have an ulcer? By the way, I get 3 hours of sleep a night, and my roommate doesn't help the situation.

2) I have recently asked you about my would be ulcer. I shall pose the question again. Lately I have this damn acid coming up my throat. I've been under a lot of stress and have strange sleeping habits. I am also drinking a lot of coffee. I drink about 5 cups of coffee a day and my roommate isn't exactly stress relieving. I go to bed about 3:30am and wake up about 5:45am for crew. Am I dying? Do I have an ulcer? What's wrong with me?


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!


Does ingesting semen have a laxative effect?

1) I have asked this question to many sites with no response, but came (sorry:) ) upon your site which seems to be willing to post just about any question and answer them too, so here goes:

Is there a laxative effect of ingested ejaculate, or is it ALL in my head (oh gosh, another one :) )? I have found that when I ingest my own ejaculate, almost invariably within a matter of a few minutes, I have loose bowels.

2) My boyfriend and I have been exploring oral sex for a couple months — but I've only just noticed that when I swallow I seem to experience a bout of diarrhea within a couple hours of doing so. Is it normal to have diarrhea from swallowing ejaculate?


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?