Health Library

Addison Disease in Children

Addison disease is when the adrenal glands don't make enough of two steroid hormones. The hormones are cortisol and aldosterone. Cortisol controls the body's metabolism, blocks inflammatory reactions, and affects the immune system. Aldosterone manages sodium and potassium levels. Addison disease is fairly rare and may first appear at any age.

Adenovirus Infection in Children

Adenoviruses are a group of viruses that cause a variety of infections. These include the common cold, conjunctivitis, and croup.

Adjustment Disorders in Children

An adjustment disorder is an unhealthy emotional or behavioral reaction to a stressful event or change in a person's life. The response happens within 3 months of the stressful event.

Adolescent (13 to 18 Years)

Detailed information on adolescence, ages 13 to 18 years

Adolescent Growth and Development

Detailed information on adolescent growth and development

Adolescent Health Problems and Injuries

Detailed information on adolescent health problems and injuries, including acne, asthma, breast conditions, breast self-examination, diabetes, eye care, eye safety, gynecological conditions, menstrual conditions, gynecologic problems, pap test, vaginitis, vulvitis, menstrual disorders, amenorrhea, dysmenorrhea, premenstrual syndrome (PMS), high blood pressure, infectious mononucleosis, obesity, oral health, orthodontics, braces, wisdom teeth extraction, periodontal disease, orthopedic problems, osgood schlatter disease, scoliosis, slipped capital femoral epiphysis, sexually transmitted diseases, safer sex guidelines, sports safety, sports injuries, sprains, strains, tennis elbow, mouthguards, heat related illness, heat cramps, heat exhaustion, and heat stroke

Adolescent Mental Health

Detailed information on adolescent mental health disorders, including schizophrenia, mood disorders, major depression, dysthymia, manic depression (bipolar disorder), teen suicide, anxiety disorders, generalized anxiety disorder, obsessive-compulsive disorder, phobia, post-traumatic stress disorder, behavior disorders, attention-deficit/hyperactivity disorder, conduct disorder, oppositional defiant disorder, eating disorders, anorexia nervosa, bulimia nervosa, substance abuse/chemical dependence, and adjustment disorders

Adolescent Problems of the Teeth and Mouth

Detailed information on adolescent problems of the teeth and mouth

After a Burn: When to Call Your Child's Health Care Provider

Details about when to call your child's health care provider after a burn.

Age-Appropriate Speech and Hearing Milestones

A helpful look at age-appropriate hearing milestones for babies and toddlers.

AIDS-Related Lymphoma in Children

AIDS-related lymphoma is a type of cancer called non-Hodgkin lymphoma. It grows in some people with AIDS. AIDS is a disease that weakens the immune system. AIDS raises the risk for long-term (chronic) disease, such as cancer.

Airway Obstruction Index

Infants and children under age 4 are particularly at risk for choking on food or small objects because their upper airways are smaller, and they tend to explore things with their mouths.