During our research over the last decade, we have found that the brain gets used to the same stimulus.
Just like your muscles respond better to different exercises, the brain also responds better to different stimulations.
That is why there is a different session for each day. We alternate the stimulus (waveform) and intensity (amplitude) for every session. This is necessary for the program to remain effective.
It does not build up on each other, the stimulus is just slightly different. So, it doesn’t matter when you join the program, you will start at the current day of the year.