Strength training
Learning Center
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Heart cancer: Is there such a thing?
Although heart tumors do occur, the vast majority of them are noncancerous (benign).
HER2-positive breast cancer: What is it?
HER2-positive breast cancer tends to be more aggressive than other types of breast cancer. Treatments that target HER2 are very effective.
Gallbladder polyps: Can they be cancerous?
The size of gallbladder polyps can be a useful predictor of whether they're cancerous.
Forgiveness: Letting go of grudges and bitterness
Forgiveness and letting go can lead to healing and peace.
Foot swelling during air travel: A concern?
Swelling of the leg or foot while flying is common and usually harmless.
Fingernails: Do's and don'ts for healthy nails
Find out the signs of a problem with your fingernails, plus tips for taking care of them.
Exercises to improve your core strength
Use these core-strength exercises to tone your core muscles, including abdominal muscles, back and pelvis.
Discolored semen: What does it mean?
Find out what causes discolored semen.
Digestion: How long does it take?
Digestion takes about two to five days, depending on your system.
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