Through the Michael J. Fox Foundation, he has helped raise awareness and funding for Parkinson's research.

His openness about living with the disease has also allowed patients and families to see a famous person discuss the realities of a condition that can otherwise be difficult to understand.

That doesn't mean his experience represents every person with Parkinson's.

It does, however, illustrate how a public figure can use personal circumstances to encourage scientific research and public awareness.

His Family Has Remained an Important Source of Support

Fox has spoken publicly over the years about the importance of his family.

His relationship with Tracy Pollan has remained a major part of his story, and their four children have grown into adulthood largely outside the intense celebrity spotlight.

Family photographs therefore often attract enormous attention whenever they appear online.

But an emotional photograph should not automatically be interpreted as evidence of bad news.

The picture accompanying the viral headline contains images from different periods of Fox's life. That alone is a reminder that social-media posts can combine old photographs with new-sounding captions to create the appearance of a breaking story.

What Readers Should Do Before Sharing the Post

If you encounter a similar headline, take a few seconds before clicking or sharing it.

Look for the original source.

If the post claims that a family member made an announcement, look for the person's verified social-media account or an official statement.

Check the publication date.

Search for coverage from established news organizations.