Her symptoms: shortness of breath and a "wired but tired" feeling. First she was told she had asthma and, later, an anxiety disorder. This show guest thought she had a mental illness for 8 long years before receiving the proper diagnosis: mitral valve prolapse. Learn more about this heart condition.

Sponsored by Medtronic - for more information click here. Animation produced by Visible Productions Inc.

3 Dos & Don'ts for Microwaving Popcorn

Microwave guru chef Matt Abdoo has his three tips for making the best, fluffiest and perfectly cooked popcorn.

Microwave popcorn is one of the best snacks! But sometimes it's difficult to get that perfect bowl. So microwave guru chef Matt Abdoo has his three tips for making the best, fluffiest and perfectly cooked popcorn.

DON'T USE THE POPCORN BUTTON

As tempting and easy as it may be, don't fall for the "Popcorn" button on your microwave. Not all microwaves are made the same, so they won't cook your bag the same way either. And there's no sensor to determine when the bag is ready, so it'll just keep cooking your popcorn until the set amount of time finishes.

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