Jeanetic Engineering: After years of consistent growth, sales of jeans dropped by about 6% last year. What happened? Yoga pants happened.

+ Fabiano Caruana could be having the best week of chess in history.

+ Many of the best players in tennis have one thing in common. The guys who string their rackets.

+ Hate when your kids eat cotton candy? You can blame a dentist.

+ Welcome to the world of river surfing.

+ NPR: Deal with it, headbangers. Babymetal is here.