By Deborah Kotz, Globe Staff

Two things amazed me about a new sleepwalking study published Monday in the journal Neurology. The first: just how common sleepwalking -- or nocturnal wandering as its known scientifically -- really is. The second: that no one ever bothered to do a large survey of Americans before this to determine the prevalence of sleepwalking, er, nocturnal wandering.

By Deborah Kotz, Globe Staff

I’m challenging myself this week to work on achieving more self-respect. That’s separate from self-esteem or self-confidence. Self-respect is about gaining peace of mind from knowing who you are and liking yourself, warts and all. How will you cultivate self-respect this week?

By Carolyn Y. Johnson, Globe Staff

A pair of Harvard researchers have begun to pry open one of the most basic questions about everyday existence: why do we talk about ourselves so much? We spend more than a third of our conversations disclosing our views, our feelings, our experiences, to others. The psychologists found that disclosing facts about oneself seems to trigger brain circuits that respond to rewards -- such as food and money.