good day - bad dayHow many times have you said that today is just not my day? We all have up days and down days. What if you could know in advance when they will occur, so that you can make minor adjustments and take control? That’s when knowing about Biorhythms can help you.

Understanding your biorhythm cycles helps you make plans and decisions.

For example:

  • Scheduling an important job interview when your intellectual cycle is at its peak
  • Having an operation when the physical cycle is at its peak
  • Just looking back at what went wrong and how you can prevent it from happening the next time.

What Are Biorhythms?

Biorhythms are biological cycles that affect us, if you aware of them or not. They begin at birth and influence you all your life.

Each cycle starts at birth at an imaginary horizon line and then alternates from a high period (above the horizon) when your energies and abilities are high, to a low period (below the horizon) when your energies and capabilities are reduced.

The 2 days where each cycles crosses over that horizon line are called critical days, when the cycle is crossing from positive to negative and from negative to positive. During these critical days your abilities and energies fluctuate wildly and you are more accident prone, and more apt to make the wrong decisions.

There are four biorhythm cycles that influence different functions and abilities.

The 4 Biorhythm Cycles


23 days stamina, co-ordination, basic body functions, immunity to disease, strength, speed


28 days creativity, mental stability, sensitivity


33 days judgment, logic, mental alertness, conceptual ability, decision making, memory recall, ability to learn, analytical functions


38 days unconscious perception, hunches, instincts, sixth sense

For a more in depth look at biorhythms check out my essay and the link to the online calculators and phone apps page.

biorhythm calculators links

Have you looked into biorhythms already. Do you find that they give you accurate feedback about what’s going on in your life? I would like to hear about it. Please leave a comment below.