Add Yahoo as a preferred source to see more of our stories on Google. Most of us have felt the freedom and delight that comes with stripping down to a swimsuit on a sunny day and wading into a cool ...

(CNN) — Most of us have felt the freedom and delight that comes with stripping down to a swimsuit on a sunny day and wading into a cool sea, the horizon twinkling in the distance. But what of shedding ...