Most of what protects independence later is built decades earlier, and the useful interventions are less dramatic than the ones that get marketed.
Keep the muscle you have
Strength declines gradually from midlife unless it is actively defended. Resistance training twice a week is the single most reliable thing on this list, and it stays effective when started late.
Protein, spread across the day
Total intake matters, but so does distribution. Several moderate servings tend to be used better than one large one, which is a small change to how meals are arranged rather than what they contain.
Balance is trainable
It responds to practice like anything else, and it is the difference between a stumble and a fall. A minute a day of single-leg standing is a genuinely low-cost habit.
