True or false: A fractionated ionizing radiation dose is MORE dangerous to the human body overall than a non-fractionated dose.

A non-fractionated dose of ionizing radiation refers to a single, large dose delivered at once, while a fractionated dose is one where the total dose is divided into multiple smaller doses delivered over time. Generally, fractionated doses are less dangerous to the human body compared to a non-fractionated dose.

This is primarily because the human body has mechanisms to repair damage from ionizing radiation. When radiation exposure is fractionated, the intervals between doses allow the body time to recover from damage caused by the previous doses. As a result, the cumulative harm from the overall exposure tends to be lower with fractionation, as the tissues experiencing the radiation have a better chance to repair themselves before they are exposed to the next dose.

In contrast, a non-fractionated dose delivers a large amount of radiation all at once, which can overwhelm the body's repair mechanisms, leading to more severe effects such as acute radiation syndrome, tissue damage, and an increased risk of long-term consequences such as cancer.

Thus, the assertion that a fractionated ionizing radiation dose is more dangerous overall than a non-fractionated dose is false, as fractionation typically allows for more effective biological recovery, making it the safer approach in many therapeutic contexts.