Michael J. Fox's wife Tracy Pollan is getting candid about the impact of his Parkinson's disease diagnosis on their family.

The Back to the Future star first disclosed his Parkinson's disease diagnosis in 1998, seven years after he first received the diagnosis, which itself came three years into his marriage to Tracy.

The couple have welcomed four kids together, Sam Michael, 36, twins Aquinnah Kathleen and Schuyler Frances, 30, and Esmé Annabel, the latter three who were born after the diagnosis.

© Getty Images Tracy and Michael at their foundation's annual gala

Tracy, speaking with People at the Michael J. Fox Foundation's A Funny Thing Happened on the Way to Cure Parkinson's Gala in New York City over the weekend, first noticed of the family's experience with Parkinso

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