Babies develop at very different rates, both physically and when reaching developmental milestones like sitting, walking or talking. That's why there's such a large range of what's considered normal ...

If you wonder how your body sizes up to others your age, it can help to compare to the average weight and height of teenagers. Keep in mind there are several factors that affect the average weight of ...

A healthy weight can depend on many factors, including your age, sex, muscle mass, bone mass, and lifestyle. Some measures, like body mass index (BMI), do not take all of these measures into account.

Track newborn growth with height weight charts and weight calculators to detect potential health risks like hypoglycemia early on.

“He’s going to be really tall!” exclaims your mother-in-law, watching your 2-year-old run in circles around the room. “How would you know?” you reply, attempting to protect him from the glass table.