On average, children begin to walk without the support of others around what age?

When a heavy drinker stops drinking alcohol, what happens to his biological system that causes withdrawal symptoms?

a. It is deprived of essential vitamins. b. It has become psychologically dependent. c. It rebounds after functioning in a chronically depressed state. d. It rebounds after functioning in a chronically stimulated state.

Which of the following disorders is more common in women than men?

A. schizophrenia B. anxiety disorders C. bipolar disorder D. alcoholism