New back-pain app tells users to straighten up; Arizona dental school pilot-testing Text2Floss reminder app;

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> USA Today waved a red flag over health and fitness apps this week, cautioning users to take care when choosing (and using) them. Article

> One of Rock Health's incubator winners, LumoBack, said it can prevent back pain. Sensors attached to the back vibrate when the user's posture is poor, and an onscreen app avatar shows when the user's positioning is back in line. Article

> The UK's NHS is testing a new text messaging service to prevent teen pregnancies. The app gives teens maps to outlets that provide free condoms, advice on where to get contraception in an emergency, and information about treatments for STDs. Article

> An Arizona dental school is betting that text reminders will help patients take better care of their gums. The new app, Text2Floss, just debuted this week. Press release

> MIM Software just received regulatory approval to market its Mobile MIM radiology app in Canada. Article

> Another new entrant--MMR--is throwing its hat into the mobile PHR market. Interesting development as critics say the PHR idea is losing steam. Announcement

And Finally... Soon they'll be selling this at baseball games for $200. Article