PausePlay% buffered00:00-26:47UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQualityundefinedSpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×PIPExit fullscreenEnter fullscreenPlay Cronkite News looks back at stories from our health team Subscribe to Cronkite News on YouTube.