I loosely follow American Freedom Flyers & the interviews Josh Yoder does, so I know a lot of pilots are flying with ‘known’ issues & some aren’t telling, but chest discomfort/pain, etc.
I quit flying years ago. If I were still flying, I would not be flying now between the pilots & their post-jab health issues plus the air controller diversity hire issues.
I sincerely hope your brother will be ok.
The mandatory retirement age for airline captains isn’t until you reach 65. He is younger than I am, so he still has several years to go if he can hold onto his medical certificate. The problem is that your big earning years as an airline pilot come after you achieve a lot of seniority. So very few pilots want to retire in their 50s and they will do all they can to keep working for as long as possible. My brother is very lucky that the standards have been eased because the same thing happened to so many other pilots at the same time. He actually has several friends who were forced to retire and one acquaintance who died. This has not been a normal situation and is being kept quiet as much as possible.