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Mumps
Find out more about the symptoms and treatment of this viral illness and how vaccines can prevent it.
Rett syndrome
This rare genetic disorder affects the way the brain develops, causing a progressive inability to use muscles for eye and body movements and language.
Toe walking in children
Walking on toes or the balls of the feet is fairly common in children who are learning to walk. Most children outgrow it.
Video: Biceps curl with dumbbell
The biceps curl builds strength in the upper arm. See how it's done.
Video: Triceps extension with dumbbell
The triceps extension targets the back of the upper arm. See how it's done.
Video: Chest press with dumbbell
The chest press exercise targets the chest muscles. See how it's done.
Video: Biceps curl with barbell
The biceps curl builds strength in the upper arm. See how it's done.
Video: Reverse fly with dumbbell
The reverse fly exercise targets the upper back. See how it's done.
Video: Bent-over row with dumbbell
The bent-over row targets the back of the shoulder. See how it's done.
Video: Calf raise with dumbbell
The calf raise targets the calf muscles in the legs. See how it's done.
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