system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout] How does RadAway help?

When you get irradiated, tiny particles that compose the radiation zip through your cells at high speeds causing damage. How does intravenous liquid help this problem of getting punched full of little holes?
gpt
Rad-Away's primary purpose isn't to reverse the affects of radiation poisoning. Rather it is designed to purge the body of persistent radioactive particles before they overwhelm it with constant damage. It's a stopgap measure designed by pre-war scientists for treating sudden exposure in emergencies, not a preventative measure for gradual exposure. 

The true defense against radiation for wastelanders lies in how well their bodies have adapted to passive radiation in the generations since the Great War. After only a few generations of exposure many wastelanders are much more resilient to radiation than their pre-war ancestors. Because of these adaptations, the only real risk from radiation to the hardy wastelander is the kind of ingested particles that Rad-Away is designed to treat.