Stress basics
Learning Center
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Chronic stress puts your health at risk
Your body's stress reaction was meant to protect you. But when it's always on alert, your health can pay the price.
Different types of COVID-19 vaccines: How they work
Find out how different COVID-19 vaccines cause your body to create antibodies that will fight the COVID-19 virus.
Growth plate fractures
Growth plate fractures — This common childhood bone injury often needs immediate treatment as it can result in a shorter, longer or crooked limb.
Multiple sclerosis
This nervous system disorder causes a range of symptoms — and while there's no cure, it's possible to have long periods of remission.
Stress and hair loss: Are they related?
Learn how stress and hair loss can be related.
Stress symptoms: Effects on your body and behavior
Learn how stress symptoms can affect your health so that you can take action.
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