How can I take care of my nails if I’m a chronic nail biter?

I am curious as to whether the nail bed regenerates or not. I used to bite my nails, and slowly I've bitten off some of the nail bed as well, on all ten fingers. It has been two years, and the nail bed does not seem to grow back, and my nails grow according to the new shape of the nail bed. It makes my hands look somewhat ugly, to be honest.

Any suggestions would be appreciated.


What are the symptoms of a heart attack?

1) I've heard that the symptoms for heart attack differ for men and women. Could you please send me info on these differences? Also could you give me some possible diagnosis for a feeling of heaviness in the chest?

2) Is it possible to have a heart attack without knowing you're having a heart attack?


Is stress causing my chest pain?

1) For the past year now, I have been getting sharp chest pains. Sometimes it feels like I am about to have a heart attack. I find it painful to breathe for the couple of seconds that it happens. The sharp pains occur mostly in the lung/heart area. However, I have also felt them in the lower chest area as well. I don't know what is causing this.

Also, it occurs most frequently during the school year. I should also note that during the school year, I tend to eat greasy fatty foods. However, I had my cholesterol level checked (95) which is low. These pains come any time of day, while I am sleeping, walking, sitting, etc. I am 21-year-old female, if that helps.

By the way, I have a doctor's appointment back home later this month. But I want to have an idea why this happening. Others mentioned to me things about stress, something about a dog's heart, and I was even thinking that it might be cancer.

2) I've recently been experiencing chest pains in the sternum area. Although I don't believe it is related to heart trouble, I think the pain is originating from the bones or muscles attached to the sternum. I have seen doctors but most are clueless as to where the pain may be specifically originating. An interesting side is that during times of stress, the pain is more severe and concentrated at specific points along the sternum. One hypothesis is that the pain may be related to an injured sterno-manubrial joint. If indeed this is the case, what therapy is available to a poor, uninsured student? My mental health is being affected since my once pumped-up, rock hard body is slowly atrophying since I can't lift weights without extreme pain. I'm depressed because the size of my chest is now smaller. What do I do? What's wrong with me?


Is it harmful to sleep on my side?

Is sleeping on our left side in any way harmful for the heart (or anything else)? Some people tell me we shouldn't do it and others tell me it's actually better than sleeping on our right side. What's the truth?

Thanks!


How can I measure my heart rate and exercise intensity?

1) I work out on my treadmill 20 to 30 minutes a day, usually one to two miles. My husband says that there is a minimum and maximum heart rate. Is there a formula that I can use to calculate this information? Please advise.

2) Is there an equation that would relate the relationship between exercise and heart rate. I understand the maximum and minimum heart rate equations for exercising. I would like to know if someone who is at their max. heart rate would be able to predict their heart rate if they increased their intensity. I am looking for something relating work intensity to heart rate.


How deep is the average vagina, and does it elongate when something's in it?

I was wondering about the depth of the vagina. I've read statistics that say that the average vagina is only 3 to 4 inches deep. This seems way too small to me, since the average penis is considerably longer than that. Wouldn't that mean that most penises would crash into the cervix repeatedly during intercourse? Since this obviously doesn't happen, my question is this: does the vagina actually elongate during intercourse to accommodate the entire length of the average penis?