Strength training
Learning Center
Concussion in children: What are the symptoms?
Whether your child's concussion is mild or severe, allow time to recover.
Core exercises: Why you should strengthen your core muscles
Core exercises strengthen your abs and other core muscles for better balance and stability.
Degenerative changes in the spine: Is this arthritis?
Degenerative changes in the spine visible on X-rays indicate osteoarthritis of the spine.
Delusional parasitosis
Learn more about this condition and positive steps you can take to manage the symptoms.
Demyelinating disease: What can you do about it?
Learn the causes and types of these diseases that affect the protective covering of nerves, which include multiple sclerosis. Also learn how they're treated.
Did the definition of Alzheimer's disease change?
What the change in the research definition of Alzheimer's disease means for you.
Digestion: How long does it take?
Digestion takes about two to five days, depending on your system.
Discolored semen: What does it mean?
Find out what causes discolored semen.
Exercises to improve your core strength
Use these core-strength exercises to tone your core muscles, including abdominal muscles, back and pelvis.
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.
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