why would whitehead appear after bad sleep?
Is it because bad sleep will change some hormone level in the body?
If this is the case,why will the lack of sleep affect hormone level?
and why will hormone level affect skin?
what happenned there underneath the whitehead?

who told you that this would happen?

And you are talking about comedones right? Because "whitehead".. ?

pito on Sun Mar 13 17:09:00 2011 said:

Yes，I am talking about pimple.
Don't you think that one or two pimple will pop up if you hardly had any sleep for more than 24?

No, it wont happen because you didnt get enough sleep.