Joel's medical condition in the HBO show is actually canon thanks to The Last of Us Part 1 Remake

The Last of Us game addresses the issue from episode 6 in a very subtle way

Everyone is hyped for HBO's The Last of Us TV show, but why?

Joel Does it all Over Again, Look For the Light

HBO's Live-Action 'The Last Of Us' Series Confirms Race-Swap For

Joel Miller, The Last of Us Wiki

Does Joel Die in HBO's 'The Last of Us'?

Last of Us' Episode 6 Makes an Overlooked Game Easter Egg Into Canon

The Last of Us' expands Bill and Frank's love story, transcending

HBO's Live-Action 'The Last Of Us' Series Confirms Race-Swap For

Everything that sucks! And some things that don't.

What Joel Did In The Last of Us 1 (& Why It Was Wrong)

Last Of Us Showrunner Explains Ending Change From Game