The least circadian disruption is expected for those who work regular shifts from:Group of answer choices14:00 to 22:0008:00 to 16:004:00 to 12:0020:00 to 4:00

The least circadian disruption is expected for those who work regular shifts from 08:00 to 16:00.

Here's why:

The circadian rhythm is a natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours. It can refer to any biological process that displays an endogenous, entrainable oscillation of about 24 hours.

1. 14:00 to 22:00: This shift can disrupt the circadian rhythm as it extends into the evening, which is typically a time for relaxation and preparation for sleep.

2. 08:00 to 16:00: This shift aligns most closely with the typical "daytime" hours when people are generally most active. Therefore, it is likely to cause the least disruption to the circadian rhythm.

3. 04:00 to 12:00: This shift starts in the very early morning, a time when the body typically is in a state of rest. Therefore, it can cause significant disruption to the circadian rhythm.

4. 20:00 to 4:00: This shift, often referred to as the "graveyard shift," can cause significant disruption to the circadian rhythm as it goes against the natural sleep-wake cycle. Most people are sleeping during these hours.