Stress basics
Learning Center
Video: Colonoscopy
See what a doctor sees when you undergo an examination of your colon.
Video: What happens during obstructive sleep apnea?
Sleep apnea — Watch this video to see how snoring and obstructive sleep apnea occur.
Video: How CPAP controls sleep apnea
See how CPAP can keep you breathing easy if you have sleep apnea.
Video: Fetal ultrasound
Fetal ultrasound provides a glimpse of your developing baby.
Video: Cornea transplant
Video shows how full-thickness and partial-thickness cornea transplants are performed.
Video: Mitral valve repair surgery
Watch this video to see how doctors do mitral valve repair surgery.
Video: Mitral valve regurgitation
Mitral valve regurgitation is shown in this video.
Video: Melanoma — Early stage and advanced melanoma
Melanoma — Video explains early-stage melanoma and advanced melanoma.
Video: Sentinel node biopsy for melanoma
Video shows sentinel node biopsy to determine whether melanoma has spread.
Video: Fitness ball bridge with heel dig
Comfortable with the fitness ball bridge? See how to add a heel dig.
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