Mental break is something that can be solved by spending a week on the beach somewhere not months of not working. This is his livliehood and every actor has bills to pay no matter how physically or mentally demanding a role is. Just because they aren't on Broadway or in a movie doesn't mean they aren't working on something somewhere. Plus, he's all but a lock for the Tony at this point, Andy Karl aside. Ben will be a hot commodity and as Betty White says never say no to work. These shows have great teams to keep these actors healthy, check the small print in the playbills, PT, vocal support, etc. The part is hard, but the fact he's done it 100 times consecutively means he's got his routine down and has figured out how to navigate the challenges. Things do happen, actors are humans not immune to the same things you and I are. Sometimes I think people in this board expect too much or make unrealistic assumptions about the business in general. It's art, but it's a job.