
Can a routine vaccine prevent dementia?

Some adults may need a measles booster shot. Who should get one and why?

Less butter, more plant oils, longer life?

Healthier planet, healthier people

Counting steps is good — is combining steps and heart rate better?

Appendix pain: Could it be appendicitis?

Can saw palmetto treat an enlarged prostate?

How does Ozempic work? Understanding GLP-1s for diabetes, weight loss, and beyond

Zinc: What it does for the body, and the best food sources

Respiratory health harms often follow flooding: Taking these steps can help

Claire McCarthy, MD
Senior Faculty Editor, Harvard Health Publishing
Posts by Claire McCarthy, MD

Child & Teen Health
Recurrent headaches in children: What to know and do

Child & Teen Health
Too old for the pediatrician? Time to switch doctors

Child & Teen Health
How racism harms children

Claire McCarthy, MD
Driving for teens with ADHD: What parents need to know

Child & Teen Health
How early can you — and should you — diagnose autism?

Claire McCarthy, MD
Teens and confidentiality

Child & Teen Health
Keeping children safe around cosmetics

Child & Teen Health
Why do parents worry about vaccines?

Child & Teen Health
HPV vaccine: A vaccine that works, and one all children should get

Child & Teen Health
Children and gun safety: What to know and do

Child & Teen Health
Infant car seats are for cars only (how not to use an infant car seat)

Child & Teen Health
The 6 don’ts of caring for your child’s teeth

Claire McCarthy, MD
When making summer plans for children, leave some time unplanned

Child & Teen Health
Public policies to stop kids from drinking sugary drinks

Claire McCarthy, MD
Young children are swallowing objects twice as often as before

Child & Teen Health
5 ways we can help our children succeed

Claire McCarthy, MD
5 reasons we need to help kids live “heads up” instead of “heads down”

Child & Teen Health
How to prevent poisonings in children — and what to do if they happen

Claire McCarthy, MD
Something else to avoid in pregnancy: Phthalates

Claire McCarthy, MD
What to do if your child is constipated

Child & Teen Health
Parents don't always realize that their teen is suicidal

Child & Teen Health
4 things everyone needs to know about measles

Child & Teen Health
What to do if you think your child has the flu

Claire McCarthy, MD
Couch potatoes start early: How to get kids moving

Can a routine vaccine prevent dementia?

Some adults may need a measles booster shot. Who should get one and why?

Less butter, more plant oils, longer life?

Healthier planet, healthier people

Counting steps is good — is combining steps and heart rate better?

Appendix pain: Could it be appendicitis?

Can saw palmetto treat an enlarged prostate?

How does Ozempic work? Understanding GLP-1s for diabetes, weight loss, and beyond

Zinc: What it does for the body, and the best food sources

Respiratory health harms often follow flooding: Taking these steps can help