Is it bad if our knees crack a lot?

I crack them when I wake up, but I think it's normal and my friend said it wasn't...?

Okay I crack my back and I am very flexible will this make me stiff?

I just started my period on the 20th and I've been bleeding a lot. Is that normal?

My knee hurts really bad what should I do I dont like the doctor so

why does my knee and back hurt when I run its really painful I've been running for 2 months now?like 5 times per week im just...

Is it bad to always be sad a lot and if you're happy all day and then you see your bf and you get lil sad but its only cause ...

My boyfriend has really, really dry and cracked skin on his hands. It's so bad to the point where he'll just have cuts openin...

Why do some people sweat more than others?? and is it a GOOD or BAD thing? whats good or bad about it?

Like I'll be reading a chapter book or some article on the computer, anything with a lot of words & I go cross eyed. Most of ...

Is cracking your knuckles bad for you? This is a question that just bugs me. It seems to relax me somehow when I crack my mu...