Michael J. Fox 's wife has opened up about how the star's battle with Parkinson's disease has impacted the lives of their four children, RadarOnline.com can reveal.

Tracy Pollan , 65, believes they've become "better people" and more empathetic after witnessing the actor's struggles with the long-term illness. Article continues below advertisement

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"I do think that growing up with a parent who has a health challenge, it just brings out an empathy and protection naturally, and they've always been like that," she explained.

Last year, Pollan, who married Fox, 64, in 1988, confessed that it can sometimes be "hard" to stay optimistic while the Hollywood

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