Ok, what levels of radiation poisoning did our astronauts endure during their flight through the belts? What were the detrimental effects on them? Monkeys put through Van Allen belt levels of radiation die within 11 months to a few years.
from Wikipedia, monkeys in space:
On May 28, 1959, aboard the JUPITER AM-18, Miss Able, a rhesus macaque, and Miss Baker, a squirrel monkey from Peru, flew a successful mission... Able died June 1, 1959, while undergoing surgery to remove an infected medical electrode, from a reaction to the anesthesia. Baker became the first monkey to survive the stresses of spaceflight and the related medical procedures. Baker died November 29, 1984, at the age of 27 and is buried on the grounds...”
math problem: 1984 - 1959 is about 25 years it lived after space flight.