If you use a fit bit or other fitness device, it may not be doing what you expect.
A man who has been trying to find the evidence these devices help you lose weight says he can't find it.
Aaron Cole writes on Upshot people have been trying to prove the devices succeed in promoting weight loss.
He cites several studies and says the people wearing technology aren't losing as much weight than those who didn't use a device.
Read his blog HERE.