Health is accumulated through ordinary behavior more often than dramatic interventions.

Health is mostly built out of unremarkable repetition. What you eat on ordinary days, whether you walk, when you sleep, how much you drink. Dramatic interventions get attention and attach to hope, and the outcome is decided far more by the boring things that happen five hundred times a year.

Choose one ordinary behaviour and make it slightly better in a way you could sustain indefinitely. The unimpressive version you keep beats the ambitious one you abandon in March.