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90-Minute Cycle Calculator

Formula

To calculate the number of 90-Minute Cycles:

$C = \frac{T}{90}$

Where:

$C$ is the number of 90-minute cycles
$T$ is the total time in minutes

90-Minute Cycle Definition

A 90-Minute Cycle, also known as the ultradian rhythm, is a biological rhythm that our bodies follow throughout the day. It refers to the alternating periods of high-frequency brain activity (approximately 90 minutes) followed by lower-frequency brain activity (approximately 20 minutes). This cycle is most commonly associated with sleep, where it is observed as the alternation between REM and non-REM sleep stages.

Example Calculation 1

Let's assume the following value:

Total Time = 180 minutes

Using the formula:

$C = \frac{180}{90} = 2$

The number of 90-Minute Cycles is 2.

Example Calculation 2

Let's assume the following value:

Total Time = 225 minutes

Using the formula:

$C = \frac{225}{90} = 2.5$

The number of 90-Minute Cycles is 2.5.