Something about biorhythms...
What are biorhythms?
A human being as well as nature can be described with periods, that is why a man is exposed to the periodic influences. Lunar cycles, winter-summer seasons and day-night changing are considered to be external influence’s factors. On the other hand the “biological clock” determines a person’s life. In the East the biorhythms had been known long before 3000 years ago. The famous "Book Of Changes" which predicts the future and gives advice for any occasion was written on its basis.
The first studies of biorhythms were made in Berlin in the 19th century by scientist Wilhelm Fliess. Dr. Fliess developed two major biorhythm theories: first, that Nature bestows on man "master internal clocks" which begin counting time at birth and continue throughout life; and second, that one of these clocks regulates a 23-day cycle influencing man's physical condition and another regulates a 28-day cycle influencing emotions or degree of sensitivity.
Nowadays the biorhythmic theory can explain the reasons of being in good or bad state without the apparent cause; being tired when a person is fit for nothing; feeling surge of strength to do one’s best.
The theory makes it possible to know for sure when a person can get the best of it in business, sport, education and even in private life. Biorhythms are also widely used to prevent accidents, to control the person’s state of health and to predict the possibility of people’s compatibility.
Each of these biorhythms starts at the time of birth. Cycle is divided into active phase (above zero level) and passive one (below zero). The day of changing phase, when one or more rhythms are changing from active to passive phase and vice versa is a critical day. During the critical day the associated abilities are unstable, and it is wise to be really careful during that day.
嘿嘿，我要做一个在线的生物节律查询功能：）预计下周开放～
Primary rhythms
The three primary biorhythm cycles are:
Physical: The 23-day physical cycle tracks the man's strength, endurance, powers and state of health.
Emotional: The 28-day emotional cycle tracks the stability and positive energy of your psyche and outlook on life, as well as your capacity to empathize with and build rapport with other people.
Intellectual: The 33-day cycle is representative of man's intellectual dynamics: verbal, mathematical, symbolic, and creative abilities, as well as your capacity to apply reason and analysis to the world around you.
Additional rhythm
Intuitive: The 38-day cycle was discovered later and can't be considered as a primary one. However it may be useful to know when you can trust your “sixth sense”. The cycle tracks an unconscious perception and instincts.
23，28，33，38这些数字怎么得出来的？
我觉得这个好象取决于对数字的崇拜，和一种直觉，并不是可以上升到理论来证明的！
不过我对这种东西到是认同。Cycle是一种最伟大的自然规律，我认为！
应该是医学结论以及统计出来的。