What does it mean that the healthy default?

Default food choices default exercise patterns default sleep behaviors.

Example: A software engineer meal-preps on Sundays and eats well at lunch. But she never designed her default food — the snacks on her desk, the freezer meals she grabs at 9 PM, the vending machine run at 3 PM. When she tracked her intake for a week, those unplanned eating moments accounted for 43% of her daily calories and were almost entirely processed carbohydrates and sugar. Her deliberate meals were excellent. Her default meals were quietly undermining them. The same pattern appeared in her movement — she ran three mornings a week but sat motionless for the other fourteen waking hours — and in her sleep, where she had no wind-down ritual and scrolled her phone in bed until exhaustion took over. She had health intentions. She did not have health defaults.

Try this: Audit your health defaults across all three domains. For food, open your pantry and refrigerator and list the first five items within arm's reach. These are your food defaults — the things you eat when you have not planned a meal. For movement, describe what you do physically between scheduled exercise sessions: how you commute, whether you take stairs or elevators, what your posture looks like at your desk, what happens when you have been sitting for two hours. For sleep, describe your last five evenings between 9 PM and the moment you fell asleep — where your phone was, what you were doing, when lights went off. Write these three lists side by side. Circle anything that is undesigned. That is your health default gap.