The science behind the soak, A coping tool for today's changing world

For centuries civilizations have flocked to warm bubbly waters to soothe their aching muscles. The steamy soak has evolved into the high-tech home spas of today that can cost anywhere from $5,000 to $40,000.

But in this time of economic uncertainty, is a backyard water oasis simply a luxury, or could it be a coping necessity? Is there any science behind the soak?

The Mayo Clinic Proceedings and Comprehensive Aquatic Therapy studies claim that being immersed in warm water causes the arteries and veins to dilate and carry more blood, allowing the heart to work more efficiently.

Blood circulation...