Imagine yourself in a warm, soothing tub of bubbling water, relaxing after a long day. What better roadway to spend the evening than soaking in the hot tub and in the comfort of your own home. Spas and hot tubs offer ways to treat a wide variety of medical conditions, injuries, or simply promote relaxation and stress relief. Hot tubs also offer a romantic way to unwind with your loved ones. The contruct utilize of of spas and hot tubs can be traced back to the Romans with their famous bathhouses which is the center of social life and a common daily activity of the elite classes. The earliest spa enthusiast (Romans, Japanese and Chinese) was able to appreciate the health benefits of using hot water to relax the body and generally promote better health. The body’s first reaction to being immersed in hot water is to try to get back to its normal temperature by pumping the heart quicker causing a temporary increase in blood pressure. The longer one soaks in the spa, the more times the blood cycles through the body. The warm blood causes the blood vessels to dilate, thus, lessening the resistance to blood flow and dropping the blood pressure. The muscle-relaxation effects of hot water also help dull muscle pain and help rid itself of lactic acid and other metabolic wastes. The water jet found in spas may also promote healing by making available more oxygen to its explicit area. This happens when the heat and pressure from the jets raise the level of antibodies and white blood cells delivered to the area, promoting the destruction of bad cells and stimulating the formation of new tissue. There are different spas having water jets but the one with less piping is preferred because it results in less friction being applied to water traveling through the pipe. The massaging water jets therefore feel stronger in all of the spas seats. People with conditions that weaken body motion, like arthritis, multiple sclerosis, or paralysis, almost always will find benefits from bathing in a hot tub. The warm water helps relieve aches and pains, while loosening joints.

Looking back to the history of spas and hot tubs, it has been a luxury merchandise for the elite class. The last few decades viewed tremendous development in spa technology, materials and manufacturing, building it reliable and affordable enough for most persons . Since then, it became popular not only for the relaxation and stress relieving benefit it offers but also as a means of treating different medical conditions and injuries.