In-depth

Alternative medicine

Tai chi

With gentle movements and focused breathing, tai chi helps reduce stress and anxiety. See if it's right for you.

Definition

Rheumatoid arthritis versus osteoarthritis

Tests and diagnosis

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

X-ray

X-rays are a form of radiation that can make images of your bones and internal organs.

Treatments and drugs

Hip replacement

Knee replacement

Find out what to expect before, during and after knee replacement surgery.

Apr. 09, 2013

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