Health Library

Newborn Sleep Patterns

New parents are often unsure how long and how often a newborn should sleep. Read on to learn about general newborn sleep patterns, the quiet alert phases, and how to help your baby fall asleep.

Newborn Warning Signs

Most newborns adjust well to the outside world. But it's helpful to know about these warning signs that could indicate a possible problem.

Nightmares and Night Terrors

A night terror is a partial waking from sleep with behaviors such as screaming, kicking, panic, sleep walking, thrashing, or mumbling.

Non-Hodgkin Lymphoma in Children

Detailed information on non-Hodgkin's lymphoma, including causes, staging, symptoms, diagnosis, and treatment

Noninfectious Skin Conditions

Detailed information on non-infectious skin conditions, including dermatitis, acne, drug rashes, poison ivy/poison oak, and toxic epidermal necrolysis

Nonstress Testing

A nonstress test is a type of test done during pregnancy. It measures the heart rate of the unborn baby in response to its movements. In most cases, the heart rate of a healthy baby increases when the baby moves.

Nontraditional Inheritance

Detailed information on nontraditional inheritance, including uniparental disomy and Prader-Willi Syndrome and Angelman Syndrome, trinucleotide repeats and Fragile-X Syndrome, and mitochondrial inheritance and Leber's Optic Atrophy

Normal Breast Development

Breast development occurs in distinct stages, first before birth, and again at puberty and during the childbearing years. Changes also occur to the breasts during menstruation and when a woman reaches menopause.

Normal Growth

A child's growth not only involves the length and weight of his or her body, but also internal growth and development.

Normal Newborn Behaviors and Activities

Detailed information on normal newborn behaviors and activities

Normal Vision

To understand how certain problems can affect your child's vision, it’s important to know how normal vision happens.

Nose and Throat Disorders

Detailed information on nose and throat disorders in children