A friend reminded me that for some of us, harmful stress is directly correlated to our real or perceived notion of being out of control of our lives.
An effective antidote then is to manage the variables that allow you to feel like you’re in better control. Even simple things. Look over tomorrow’s schedule before going to bed. Plan that difficult conversation before things get worse. Clean your car. Prepare your next several meals.
Psychologically, it doesn’t matter much whether you actually are in better control of your life. It matters that you believe you are.