Nutrition basics
Learning Center
Video: Allergy tests
What happens in an allergy test? Watch this video and find out.
Underweight? See how to add pounds healthfully
If you're underweight and not happy about it, try these tips to help you achieve your goal weight.
Tumor vs. cyst: What's the difference?
A Mayo Clinic expert explains the differences and similarities between these two types of growths and how doctors determine if they're cancerous.
Thyroid peroxidase antibody test: What is it?
Sometimes this test is done to help figure out the cause of thyroid disease.
Testicular exam
Examining your testicles regularly can help you notice changes when they occur and identify testicular problems.
Taurine in energy drinks: What is it?
Energy drink ingredients can cause concern for some who consume these beverages.
Stress test
This test gives important information about your heart health. Know how to prepare and what to expect.
Stool DNA test
Learn about this noninvasive colon cancer screening test that can detect DNA changes in cells collected from a stool sample.
Sodium: How to tame your salt habit
Find out which foods have lots of this mineral and get tips on how to cut back.
Small cell, large cell cancer: What this means
Cancer cells are classified by how they look under a microscope. Learn common terms used to describe cancer cells.
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