A wristband may solve all your health problems. Jawbone's "Up," a little wristlet that will fit right in with your Livestrong bands, will track all your eating, sleeping and exercise routines. It will track your patterns -- and you can also set it to act as your own personal nag. It can let you know when you've been lazing around on your couch for a little too long or when it's time for you to stop scarfing down potato chips. You can track how well you've been doing with the accompanying app and an in-built social media feature will let you connect with friends to work on little health challenges.