Final answer:
The biological effects of low-dose radiation are a topic of debate among researchers, with some suggesting positive effects while others believe all exposure poses a risk to human health.
Step-by-step explanation:
The biological effects of low-dose radiation are a topic of debate among researchers. Some studies suggest that low doses of radiation may have positive effects on the body, such as helping repair mechanisms to develop or enabling cells to adapt to the effects of radiation.
This concept is known as hormesis. However, other researchers believe that all exposure to radiation, no matter how small, poses a risk to human health. This controversy is important for regulating radiation exposure and has implications for the understanding of long-term effects on human health.