What is a Biorhythm Chart? The word Biorhythm is composed of two Greek terms: “bios” and “rhythmos” which mean “life” and a constant changing “rhythm”. Biorhythms have been monitored and tracked since Ancient China more than 3000 years ago. The popular book titled, “Book of Changes” was written on the biorhythms and claims to predict the future and gives advice for any occasion. According to history, studies of biorhythms were first made popular in Berlin during the 19th century. They determined that humans have a “master internal clock” that regulates physical condition, emotions and"> What is a Biorhythm Chart? The word Biorhythm is composed of two Greek terms: “bios” and “rhythmos” which mean “life” and a constant changing “rhythm”. Biorhythms have been monitored and tracked since Ancient China more than 3000 years ago. The popular book titled, “Book of Changes” was written on the biorhythms and claims to predict the future and gives advice for any occasion. According to history, studies of biorhythms were first made popular in Berlin during the 19th century. They determined that humans have a “master internal clock” that regulates physical condition, emotions and"> Personalized Biorhythms Chart - Simply Sherryl