Diet pills, supplements and surgery
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Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
Guide to types of weight-loss surgery
Considering weight-loss surgery? Find out about the most common methods and see how they work.
HPV vaccine: Who needs it, how it works
Learn about how the HPV vaccine works, who needs it and what side effects to expect.
Headaches: Treatment depends on your diagnosis and symptoms
To combat your headaches, first determine what type of headaches you have.
Hearing aids: How to choose the right one
Find out how to choose the right hearing aid.
Heart conditions and pregnancy: Know the risks
Here's what to know to protect your heart and have a healthy pregnancy.
Herd immunity and COVID-19: What you need to know
To protect groups of people over time, it helps to know what level of recovery or vaccination in a population makes it hard for a germ to spread.
Hormone therapy: Is it right for you?
Hormone therapy helps treat bothersome menopausal symptoms, but it's not for everyone. See if hormone therapy might work for you.
How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
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