Skin Picking and... Caffeine?!?

I've been contacted by a person who conducts research in self injury disorders, with relation to family relations and caffeine.

...now I know that family origins have big impact on development of skin picking. However never thought about its relation to caffeine (or any other substance for that matter...)

Since I'm always more than welcome to help researchers in this field, I decided to post this survey here.

Read more and participate in the survey

I read in an article that caffeine kills the B-vitamins in our bodies ...and that is bad for us because the b-vitamins help with depression/ stress/ etc. I have also read that vitamin B helps with acne problems.