Fitness basics
Learning Center
Diabetes treatment: Can cinnamon lower blood sugar?
Learn what cinnamon's role may be as part of a diabetes treatment plan.
COVID-19 variants: What's the concern?
The virus that causes COVID-19 has changed over time, which has affected prevention, diagnosis and treatment of COVID-19.
Car sickness in children: Can I prevent it?
Carefully planned pre-trip meals, air ventilation and distractions might help prevent car sickness in children.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Pink eye: How long is it contagious?
Many parents wonder how long pink eye (conjunctivitis) is contagious. Find out.
Mononucleosis: Can it recur?
Mono can return in some rare cases. Learn why that happens.
Recurring strep throat: When is tonsillectomy useful?
Tonsillectomy may sometimes be needed in children who have recurring strep throat infections.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
Bipolar disorder in children: Is it possible?
Bipolar disorder in children and teenagers is possible. Finding it early and treating it can help.
Flu shots for kids: Does my child need a flu shot?
Know the latest recommendations for children's flu vaccines.
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