Quit-smoking basics
Learning Center
Hypothyroidism and infertility: Any connection?
For women, there's sometimes a link between having an underactive thyroid gland (hypothyroidism) and infertility.
How to treat baby eczema
Learn simple remedies to easing your baby's discomfort from the pain and irritation of this skin rash.
How to treat a piercing site infection
Learn what you can do at home if your ear new piercing becomes infected.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
Hookah smoking: Is it safer than cigarette smoking?
This habit isn't safer than smoking cigarettes. Find out why.
Hodgkin's vs. non-Hodgkin's lymphoma: What's the difference?
Learn how types of lymphomas are determined using lab tests to examine cancer cells.
Hemorrhoids during pregnancy: What's the best treatment?
Know how to relieve painful, swollen veins in the anus and rectum during pregnancy.
Headaches during pregnancy: What's the best treatment?
Here's help with preventing or easing this common type of pain while you're pregnant.
HER2-positive breast cancer: What is it?
HER2-positive breast cancer tends to be more aggressive than other types of breast cancer. Treatments that target HER2 are very effective.
Fundal height: An accurate sign of fetal growth?
Understand how fundal height is measured and what it means.
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