What does it mean that social habits?

Habits that involve other people are both harder to form and harder to break.

Example: You start a daily running habit alone, and it lasts three weeks before collapsing. You join a running group that meets at 6 AM, and you show up for fourteen consecutive months — not because your willpower increased, but because skipping means six people will text you asking where you were.

Try this: Identify one habit you want to build and one person in your life who either already practices it or wants to. Propose a specific, time-bound social contract: same activity, same time, same check-in method, for two weeks.