Heartbreaking news: Trent Johnston’s health is gradually deteriorating, leaving fans heartbroken.!!“Prepare For The Worst”

Fans have followed Trent Johnston, his wife Amber Johnston and their five kids since 7 Little Johnstons premiered on TLC in 2015.

Throughout the years, viewers have watched the family navigate day-to-day life, so it shouldn’t come as a surprise that patriarch Trent’s health issues became a topic of concern in Season 15, which began airing in January 2025.

Keep reading for what to know about Trent’s health, including his brain size and more:

How big is Trent Johnston’s brain?

During Season 15 of 7 Little Johnstons, Trent underwent an MRI after experiencing memory loss and other cognitive symptoms, and he did not receive good news from the doctor when getting his test results.

“The size of my brain, the diameter, the gap, the spacing between my brain and my skull has reduced at a faster rate than what it should be at 47 years old,” Trent explained to his wife during an episode. “It’s the size of, like, an 80, 81-year-old.”

He later added: “It doesn’t make me feel good to sit here and say, ‘Hey, I know you’ve been a hard worker, and you’ve done a lot in your 47 years, but you got to slow down. Your brain’s the size of an 80-year-old.’ Academically, I’m not that gifted anyway. So if this is my next challenge right now, besides getting back to work, let me button up and get this figured out.”

After Trent revealed the size of his brain to Amber, she told the cameras, “It does concern me, and it does worry me, when your brain is already at the state of an 80-year-old and you’ve already got these cognitive issues. Does this necessarily set him up for a higher chance of dementia or Alzheimer’s or things like that? So that’s definitely a concern.”

Related: Will ‘7 Little Johnstons’ Return for Season 16?

While chatting in the car about his test results, Trent also told Amber that the MRI showed “possible early stages or preexisting stages” of multiple sclerosis (MS), which Amber called “life-altering.”

What is multiple sclerosis?

MS is a “disease that causes breakdown of the protective covering of nerves” and can cause numbness, weakness, trouble walking, vision changes and other symptoms, according to Mayo Clinic. There is currently no cure for MS.