Sensa claims to help you lose weight by changin the way you smell food. Hear from experts and real women who've tried it. Should you believe the hype? Dr. Oz investigates.

View Part 2 of Sensa: Sensational or Senseless?

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Drowning: How to Respond

It's critical to get the person breathing again as soon as possible.

Drowning can happen quickly. Three children die every day from drowning, and most fatal incidents happen from lack of appropriate supervision. Every minute that passes is critical in saving them or preventing serious injury. Here's what to do if you see someone drowning and you need to help rescue them.

Call 911

You should alert emergency responders as soon as possible. If there are other people around, instruct someone to make the call. If you are alone, help the drowning person until you can give CPR for one minute and then call 911 yourself (then continue life-saving measures).

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