Children go through distinct stages of play as they grow. Each stage is critically important to the development of the next.

Your child is a toddler now and very active! They can climb stairs while holding on and play with push and pull toys.

Many children watch too much digital media, which includes TV, the internet, and smart devices. Learn why too much screen time is not good for kids--and how to set limits and establish good viewing habits.

A helpful look at what to expect with your newborn—from your baby's growth and reflexes to crying and emotional development.

Read on for helpful suggestions for activities and toys for your baby, according to their age.

If you know anything about your baby's sleeping pattern, it's probably that it doesn't coincide with yours. But learning more about your baby's nighttime and daytime sleep needs can help you recognize what's normal, and what's not.

Detailed information on what teen boys can expect during a physical exam.

Bipolar disorder is a type of depression. A teen with bipolar disorder often has extreme mood swings. These mood swings go beyond the day's normal ups and downs.

Cognitive development means the growth of a child's ability to think and reason. This growth happens differently from ages 6 to 12, and ages 12 to 18.

Bulimia nervosa is an eating disorder. A child with bulimia overeats or binges uncontrollably. This overeating may be followed by self-induced throwing up (purging).