Simplify the following text for a Grade 8 native English-speaking person.
Original: Though 84 years old and in poor health , Hindenburg was persuaded to run for re-election in 1932 , as he was considered the only candidate who could defeat Adolf Hitler .
Simplified: He was 84 years old and in poor health , but had to run for re-election in 1932 as the only candidate who could defeat Adolf Hitler .