behavior problems

New here, but certainly not new to marriage problems; mine or other people’s. My academic and professional background in psychology and counseling are pretty extensive, though I am here just to participate and, hopefully, add to the conversation. Presently, I work teaching adult learners. I...

My wife and I have two kids. One of which is three years old. Since about 1 years age she has been biting her nails. We think it is an anxiety issue. We haven't had to cut her finger nails since then. We notice it is always worse when she is upset or sent to time out. Anyone have any...