Memory foam was first developed by NASA to help evenly absorb and redistribute the huge amounts of g-force pressure endured by the astronauts during liftoff. This viscoelastic, aka memory foam, technology was never really used on a full scale until it was initially introduced commercially by the medical industry. Hospitals soon realized the benefits of the memory foam material as a result of memory foam’s pressure-relieving qualities of the temperature sensitive memory foam or visco elastic material. Soon thereafter, memory foam mattresses quickly became widespread in the early 1990’s after the medical industry’s initial introduction through hospitals. The modern day health benefits of the usage of memory foam mattresses on a daily basis were quickly discovered by individuals all over the world. Today, new technologies are constantly being introduced, such as magnetic therapy through materials in the memory foam mattresses and other viscoelastic products.