Top 10 in Wearable Wellness These companies put useful technology in the palm of your hand -- or on your finger or in a dog collar or in a sock for infants...

Companies that rethink wearables have re-envisioned how we live, work, play -- and in some cases -- sleep.

1. Thinx makes tampons nearly obsolete with its specially-designed liquid-absorbing line of underwear that took more than three years to develop.