Chromotherapy is one of the alternative medicines: the colorful world of colors represents a therapy aimed at treating disorders of varying degrees. In this "medicine", which does not make use of any scientific proof, colors are indispensable to rediscover the harmony and balance of body and spirit. Chromotherapy is also defined as supplementary therapy, thus supporting other more invasive medicines. Chromotherapy practitioners believe that colors are able to influence the body's functions, affecting the metabolic, nervous and immune systems.