According to the theory of biorhythms, on the birthday of each person, three main cycles are launched that affect his future life. The physical cycle (23 days) determines the abilities and limitations of the body; emotional cycle (28 days) causes emotional reactions; and intellectual (33 days) affects the work of consciousness. Biorhythms do not indicate that an event or accident will necessarily occur at a specific time. They do not show that you will win the lottery or change your occupation.