When you are recovering from a stroke, you spend much of the time asleep. But when you are not sleeping, you are told that the most important thing you have to do is avoid stress. All doctors agree that stress is the main impediment to recovery. But how can you possibly protect yourself against it? The causes of stress can creep up on you from anywhere without warning, and there is nothing you can do about it; and lately I have been bombarded by shocks.