Aerobic exercise
Learning Center
Easy bruising: Why does it happen?
Get the facts about easy bruising. Learn about causes and find out when it's a sign of a problem.
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.
Exercise: How much do I need every day?
Find out how much exercise you need and how to get it.
Exercising? Take it up a notch
Want to get the most out of your workouts? Try interval training! This simply means alternating bursts of intense activity with intervals of lighter activity. Take walking. If you're in good shape, try incorporating short bursts of jogging into your regular power walks. If you're less fit, alternate leisurely walking with periods of faster walking. (For example, if you typically walk outdoors, walk faster between certain mailboxes, trees or city blocks.) The more vigorously you exercise the more calories you'll burn, even if you increase intensity for just a few minutes at a time.
Fibromyalgia: Linked to other health problems?
Fibromyalgia often co-exists with several other painful conditions, which may be related to how your body processes pain signals.
Flu symptoms: Should I see my doctor?
See a healthcare professional if you are at high risk for complications from flu.
Focus on fit when shoe shopping
To find shoes that fit properly, try these tips: 1. Have your feet measured. Shoe size can change as you age. 2. Ask the salesperson to measure both feet. If one foot is larger than the other, try on a pair that fits your larger foot. 3. Shop for shoes later in the day after you've been walking for some time, when your feet are at their largest.
Food allergy vs. food intolerance: What's the difference?
Might you have to swear off milkshakes for good? Follow the symptom clues to find out whether you possibly have a food allergy or a food intolerance.
GERD: Can certain medications make it worse?
Certain medications can aggravate symptoms of gastroesophageal reflux disease (GERD). Learn more.
Get walking with this 12-week walking schedule
Do you want the health benefits of aerobic exercise but need help getting started? Try this easy 12-week walking plan.
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