Michael J. Fox celebrated his son Sam’s 34th birthday amid the actor’s worsening battle with Parkinson’s disease.
“Happy Birthday to my big bouncing baby boy @palekidd you are the best,” the “Back to the Future” star, 61, captioned a carousel of pics on Instagram earlier this week.
“Proud to be your pops. Love you!”
In one of the snaps, Sam was in the middle of blowing out the candles on his chocolate-covered cake.
Fox and his eldest child were seen posing on a boat in front of a waterfall in another photo.
The “Family Ties” alum then planted a kiss on Sam’s cheek as the birthday boy smiled with glee in a third pic.
Fox’s wife, Tracy Pollan, also commemorated their son’s special day on Instagram.
“Happy Birthday to the absolute best son ever! You fill my life with so much joy, humor, kindness, and random information that I never knew! I love you!,” she captioned an Instagram post, featuring Sam riding a horse and out on a boat with her.
Fox and Pollan, who tied the knot in 1988, are also parents to twins Aquinnah and Schuyler, 28, and daughter Esmé, 21.
The “Spin City” star’s tribute to his son comes more than a month after he revealed that his more than 30-year battle with Parkinson’s disease — which affects the nervous system and motor skills — was getting “harder.”
“[Parkinson’s] banging on the door … I’m not going to lie, it’s getting hard. It’s getting harder. It’s getting tougher,” the beloved actor told “CBS Sunday Morning” on April 30. “Every day it’s tougher … that’s the way it is.”
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Fox — who was diagnosed with the brain disorder when he was 29 — explained that he’s had more trouble walking and has broken multiple bones since he had surgery to remove a benign tumor on his spine.
“I’ve been thinking about the mortality of it … I’m not going to be 80. I’m not going to be 80,” he added.
Fox stepped away from acting in 2020 due to his declining health.
“There is a time for everything, and my time of putting in a 12-hour workday, and memorizing seven pages of dialogue, is best behind me,” he revealed in his fourth book, “No Time Like the Future: An Optimist Considers Mortality.”
Fox has become a leading advocate for research on the condition. His Michael J. Fox Foundation, which was founded in 2000, has raised more than $1 billion.
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