A new book could rock your foundation (garment).

Pop quiz! Are you wearing the correct bra size? Well, chances are you're not. Research suggests up to 85 percent of women are walking around in the wrong bras. Spending the day in an ill-fitting tata tamer can lead to poor posture, muscle tension, headaches and even trouble breathing.

So we turned to Ali Cudby, author of the soon-to-be-published book Busted! The Fab Foundations Guide to Bras That Fit, Flatter and Feel Fantastic, to boost our knowledge. Test your bra basics:

• True or False? The right bra can make you look 10 pounds lighter. Click here for the answer.
• True or False? The average bra size is 36C. Click here for the answer.
• True or False? One breast is usually larger than the other. Click here for the answer.
• True or False? You should wash your bra after every use. Click here for the answer.

Download a sneak peek of the book here.  

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