AceShowbiz - Tracy Pollan doesn't need to feel "optimistic" all the time about her husband Michael J. Fox's Parkinson's disease. The 63-year-old actress married "Back to the Future" star Michael, 62, in 1988 and he was diagnosed with the brain disorder - which causes uncontrollable movements, such as shaking, stiffness, and difficulty with balance and coordination - just three years later has admitted that the key is to keep going and rely on family for support.

"I don't think you need to feel the pressure to be optimistic all the time. The key is just put one foot in front of the other and lean on family and friends for support," she told PageSix.

Michael - who has Sam, 34, twin daughters Aquinnah and Schuyler, 28 and 21-year-old Esme, with Tracy - recently admitted that even though she is one who "got him through it", he would have understood if she had chosen to walk away.

Speaking on "CBS Mornings", he said, "It's been great for me, I don't know how it is for her. I love Tracy obviously and she's an amazing person and has gone through a lot. I realize she has a life separate from me having Parkinson's, from me being Alex Keaton or Marty McFly, she's a person."

"I think that's why it's gone OK. She had indicated to me by saying in for better or for worse, in sickness and in health. She was able to get me through it, and go through it with me. And she has for 35 years. We knew the bus was coming and we knew it was going to hit, but we didn't know how far away it was or how fast it was going. At any time she would have been forgiven to say, 'I'm just gonna step out.' But, she didn't do that."