A regular exercise routine prevents sickness. However, a sick person cannot start an exercise routine.
A sound investment strategy helps you withstand a crisis. However, you cannot start saving when you are in the midst of a crisis.
A good meditation practice makes you resilient to stress. However, when a person under tremendous stress is unlikely to find the mental space to start a meditation practice.
A just-in-time approach doesn’t always work. Especially not with habits that are important, but not urgent. These habits are the ones you need to cultivate when the going is good – well before you need them.