Sarah Piampiano holds two energy gels, one with caffeine and one without, as she runs in this year's Ironman World Championship.
Credit Murray Carpenter for NPR
GU energy gels, pictured above, come in caffeinated and noncaffeinated flavors. Of the gels pictured above, Chocolate Outrage, Mint Chocolate, Island Nectar and Just Plain all contain caffeine, while Peppermint Stick doesn't.
Credit slgckgc / Flickr
Last month, triathlete Sarah Piampiano competed in the Ironman World Championship in Kona, Hawaii. Piampiano and many other endurance athletes are relying on caffeinated gels in their races.
It's an anniversary that most Americans can celebrate — the birthday of the big-box store. Discount shopping as we know it began 50 years ago. In 1962, enterprising retailers invented Wal-Mart, Target and Kmart.
Employees at at Salo, a Minneapolis-based financial consulting firm, walk while working on treadmill desks. The firm offers treadmill desks for employee use and encourages an active workplace environment.
The White House and Congress continue to work on a deal that avoids the fiscal cliff and cuts deficits in the long run. One of the biggest hurdles is President Obama's proposal to raise tax rates for the wealthy.
Republicans think a better course would be to raise revenue by closing loopholes and limiting deductions for high-income people. The question is, could that method raise enough money.