Go for a walk, and after a few weeks introduce a period of jogging. Don't overdo it, but always match it or go a bit further.
Most CEO's have a 'big item agenda' which they implement in 5-7 years. After that, it's time to move on to look for the next challenge. I'm not convinced that's a bad thing in and of itself as it provides new insights and goals for the company.
Sure. I just found it humorous a multi-national company like Sony is run by a 'foreigner'. Foreigner to whom?
Video cards are just so expensive.