No Evidence Flossing Does Anything At All
Conventional wisdom says you should floss everyday. New research is calling that into question. Cenk Uygur and Ana Kasparian, hosts of The Young Turks, break it down. Tell us what you think in the com
登録:2016/08/07 12:09:13
再生:2 コメント:0
この動画の配信元サイト: youtube.com
登録ソース:
Flash版プレイヤはこちら旧プレイヤで再生