Aerobic exercise
Learning Center
Exercise: How much do I need every day?
Find out how much exercise you need and how to get it.
Exercise intensity: How to measure it
To get the most out of exercising, aim for moderate to vigorous exercise intensity. See how to judge your exercise intensity.
Concussion
This brain injury can cause headaches, dizziness, trouble concentrating and other symptoms that often improve within days to weeks.
Brain AVM (arteriovenous malformation)
Tangled blood vessels in the brain affect typical blood flow in this rare condition. Learn more.
Autoimmune pancreatitis
Autoimmune pancreatitis is a relatively uncommon disease of the pancreas that may be mistaken for pancreatic cancer.
Aquatic exercises
Thinking about signing up for an aquatic exercise class? Or trying water exercises on your own? Check out these pool moves.
Aerobic exercise: Top 10 reasons to get physical
Need inspiration to work out? Consider the top 10 benefits of aerobic exercise.
Aerobic exercise: How to warm up and cool down
Learn how to warm up and cool down the safe way.
Acne
Learn more about this common skin condition, including causes, treatments and simple skin care steps you can do at home to help control it.
5K run: 7-week training schedule for beginners
Running a 5K? Make it to race day in seven weeks.
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