Sleep
Learning Center
Sick sinus syndrome
This heart rhythm disorder causes slow, paused or irregular heartbeats. Learn the symptoms and how it's treated.
Shigella infection
Shigella infection is an intestinal infection that causes diarrhea. Learn how to recognize, treat and prevent the spread of this contagious condition.
Shellfish allergy
It's possible to be allergic to some types of shellfish without reacting to other types. Learn more about this common food allergy.
Sexually transmitted diseases (STDs)
Find out the symptoms of STDs and what you can do to prevent them, along with the treatments if you're diagnosed with one.
Sex education: Talking to your teen about sex
Sex education is a parent's job. Here's help handling the challenge.
Severe acute respiratory syndrome (SARS)
Learn about this contagious and sometimes fatal respiratory illness. The last known infection was reported in 2004.
Separation anxiety disorder
This is intense or prolonged separation anxiety that interferes with school or other daily activities or includes panic attacks. Learn about treatment.
Self-injury/cutting
Deliberately hurting your own body, such as by cutting or burning, is a harmful way to cope with emotional pain, intense anger and frustration.
Seizures
Learn about the different types of seizures and what causes them. Also find out what to do if you see someone having a seizure.
Screen time and children: How to guide your child
Managing your child's screen time takes effort. Find out how to ensure quality screen time and set limits.
Refine Your Search
Type
Gender
Age
- All
- 13 to 18 years teen
- 19 to 44 younger
- 06 to 12 years elementary/preteen
- 45 to 64 middle
- 03 to 5 years preschool
- 02 months to 2 years infant/toddler
- 00 birth to 01 month newborn
- 65 to 80 older
- 80 and over
- 16 months to 2 years toddler
- 11 to 12 years preteen
- 19 to 28 young adult
- 10 years
- 2 years
- 15 months
- 12 months