Don't wanna derail the thread too much, but sadly, health issues are very common in manga, as at least working on a mainline title for a big publisher can be super stressful and time consuming. Kishimoto, who made Naruto in 1999 could only go on vacation for his honeymoon with his wife in 2014, when Naruto was finished, 15 years after he married.
Togashi, of Hunter X Hunter fame, you can meme Hiatus X Hiatus all you want, but he seemingly got legit nerve damage in his back and neck now, hindering himself from drawing for prolonged amounts of time. If I'm correct, he was also the one, who made a calculation that on an optimal day, he can sleep for 5 hours and has like 30 minutes leisure time per day.
Keep in mind, there are also cases where the opposite is true, say, like Araki, who consistently does Jojo since 1988 and seemingly is the Keanu Reeves of mangaka, considering his looks and age (60 years).
I think it's an issue for both parties, editors/publishers/fans that can be very demanding in terms of schedule and product quality, but also creators that literally breathe their art every second and can obsess over work (rightfully so) but get lost in their work too. To me, Miuras passion was evident and it is very sad to see him go. I read his first Berserk volume 18 years ago and was a fan ever since.
