The play deals with dementia, as its main character Lenny suffers from it.

The panel for the forum included Harbison Care, Moss Vale representatives Roslyn Gravolin and Peter Davis as well as A Tree, Falling's director Dave Letch.

It was moderated by former Member for Goulburn Pru Goward, who said dementia is now the biggest killer of women in Australia.

She sought responses from the panel and the audience on the illness.

Roslyn Gravolin said it is now affecting younger people as well and there is no cure for it at the moment, but that a healthy lifestyle can minimize the onset.

When interacting with people who have dementia, she said it is best not to argue with them.

"You have to meet them at their reality," she said.

"Love the person they have always been."

Peter Davis said it was important to remain positive in your dealings with people who have dementia.

"If you create a positive emotional experience that can stay with them all day and the reverse is true," Mr Davis said.

He said carers are often "the forgotten ones."

"Carers are the forgotten ones the universe revolves around the person with dementia - the carer must also be looked after," he said.

Director Dave Letch said one of the reasons he presented the play was because it brought up a lot of issues about the illness and was often a conversation starter on the topic.

"As I get older, I resonate with the play more," he said.

He said in many ways the play is about the removal of memory.