The theory of biorhythm starts from the fact that since birth, man, more precisely his emotional, physical and intellectual abilities pass through favorable, unfavorable and critical moments.
The best way to notice because there are days when you certainly feel good with no apparent reason or otherwise, when you have a starting point of your hands. The biorhythm concept starts with these experiences.

This is a convenient and easy-to-use application that allows you to calculate the forecasts of personal biorhythms for a selected date for each user. It has a user-friendly interface, allows you to find the most dangerous days in a month, calculate your biorhythms for today (or any other) day, and see on the charts how your biological rhythms will change within a month. Calculations are performed with high accuracy. Knowing your biorhythms, you can always be sure what to expect from each day is very convenient, fast and absolutely free.