"The bracelet is hard to adjust on my small wrists, so I don't know how much it worked for me," says Thompson.
"I don't feel like I have that much more endurance."
Results, not so good. But we try again with Marlisa Goldsmith, who has had a busy day of lugging her camera equipment around town.
"I felt I had more energy when I was wearing it," Goldsmith says.
"I don't know if it's because I knew what it was supposed to do beforehand but I had the energy to get the job done."
So while the bracelet may have had an effect for one of our subjects, overall if you're looking for a pick me up, you may be better off with a cup of coffee.