Dear Abby: My parents divorced when I was in high school, and Dad kept the house I grew up in. I'm in college across town and have my own place, but I still visited Dad often. As a teenager, it used ...

Dear T.H.: Many people have strong feelings that vitamin B12 can dramatically improve their health, but it only helps to take vitamin B12 if you are deficient. Vitamin B12 deficiency isn't too common.