Whitney Houston- Live from Tokyo 1988 (5/10)
https://www.youtube.com/watch?v=yhq6dVDCaqU 1:33 talking about the effects of contact sports on long-term health.
24-year-old NFL player quits over concussion worries
https://www.youtube.com/watch?v=PBSULvXUM7s 0:48 Black Friday can be a full contact sport.
Ultimate Strategies to Black Friday Shopping Deals Revealed
https://www.youtube.com/watch?v=GcPk6DaYg2I 0;08 we've all learned a lot in recent years about the dangers of head injuries from contact sports like football.
Invisible wounds of war 60 Minutes
1:30 competition for such too-good-to-be-true prices, typically on high demand electronic products, may explain why Black Friday shopping occasionally turns into a contact sport. 赤字覚悟の値段、特に電化製品、がブラックフライデーを戦場に変えてしまうのも、なるほどとうなずける
US Retailers Look to Profitable Black Friday Weekend
