Ergonomics and long-term health impacts of computing, man. Those are big areas where there is still a ton of work to do, and very little existing research. Apple has done an awful job here, essentially zero contribution or innovation in making desktops, laptops, and mobile more ergonomic and less injurious.
Their keyboards are the worst in the industry, rectangular slabs of anorexic design. Their mice are the worst in the industry, giving no hint at all that they were intended for human hands. They should’ve introduced a clean-sheet keyboard layout by now to replace QWERTY, along with an ergonomic shape and structure, but they’ve done nothing.