He is known for resolutely putting on a happy face.But in the new Peopleissue Michael J Fox, 59, revealed the 'darkest moment' that left even him unable to find an 'upside.'The nightmare period came in 2018 after he suffered a spinal tumor.
And then right after he got it excised, the Back To The Future star broke his arm in a fall. Both were unrelated to his battle with Parkinson's disease.
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