Weight machine exercises
Learning Center
Video: Ovulation
Ovulation — the release of an egg from an ovary — occurs about midway through the menstrual cycle. See how it happens.
Video: Melanoma — Early stage and advanced melanoma
Melanoma — Video explains early-stage melanoma and advanced melanoma.
Video: Lying hamstring curl with weight machine
The hamstring curl exercise targets the back of the thigh. See how it's done.
Video: Lat pull-down with weight machine
The lat pull-down targets the side of the chest wall. See how it's done.
Video: Knee extension with weight machine
The knee extension exercise targets the front of the thigh. See how it's done.
Video: How cancer spreads
Watch this video to see how cancer spreads (metastasizes).
Video: Heart and circulatory system
Watch this video to see how a healthy heart works.
Video: Chest press with weight machine
The chest press exercise targets the chest muscles. See how it's done.
Video: Biceps curl with weight machine
The biceps curl builds strength in the upper arm. See how it's done.
Video: 3 things you didn't know about cold sores
Cold sores on the lips can be embarrassing and tough to hide. Most people who are infected with the virus that causes cold sores never develop symptoms.
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