Kidder told PEOPLE five months later that the root of most of her problems, which included 'mood swings that could knock over a building', was manic depression.
'It’s very hard to convince a manic person that there is anything wrong with them,' said Kidder. 'You have no desire to sleep. You are full of ideas.'
Kidder is survived by her daughter, Maggie McGuane.
This article originally appeared on New Idea.