Talking to kids about sex
Learning Center
ADHD diet: Do food additives cause hyperactivity?
Better research is needed to find out if limiting certain foods or food additives will help reduce hyperactivity and ADHD symptoms.
Abnormal sperm morphology: What does it mean?
Abnormal sperm morphology may be a contributing factor in male infertility.
Adrenal fatigue: What causes it?
Adrenal fatigue is a term used to describe a group of symptoms that aren't specific. It's not an official medical diagnosis.
Adult bed-wetting: A concern?
Adult bed-wetting is uncommon and requires evaluation by a doctor. Learn about possible causes.
Alzheimer's and dementia: What's the difference?
The terms 'Alzheimer's disease' and 'dementia' are often used to mean the same thing — but here's the real difference between them.
Aortic calcification: An early sign of heart valve problems?
Aortic valve calcification — once thought a harmless condition — may be a sign of heart valve disease.
Autism spectrum disorder and digestive symptoms
Children with autism spectrum disorder often have other health issues, including problems related to digestion.
Autism spectrum disorder treatment: Can special diets help?
There's no evidence that restrictive diets are an effective treatment for autism spectrum disorder.
Autism treatment: Can chelation therapy help?
Chelation therapy is not an effective autism treatment, and it may be dangerous.
Avulsion fracture: How is it treated?
Surgery is rarely needed to reattach a small chunk of bone when it gets pulled away from the main part of the bone by a tendon or ligament.
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