
Most Americans are no strangers to hard work, and great physical exertion comes with a price. While performing feats of manual labor can instill a person with a sense of personal satisfaction at a job well done, the process also takes a physical toll. Microwave heating pads offer an effective way to relieve lower-back pain caused by strains and over-exertion.
Heat therapy works by dilating blood vessels near the source of soreness and increasing the flow of nutrients to the muscle. The pain signals that would normally be traveling to the brain are disrupted by heat. A properly applied heating pad will also serve to stretch muscles out of their stiff, painful state. Finally, this method of therapy is inexpensive as it can be administered right from home.