you pick a long term goal and associate a metric to it.

Example: weight from 180 to 170 That's your lag measure.

Your lead measure are the activities you get done daily.

- Daily caloric intake

- sleep schedule

- exercise routine

- water intake

- intermittent fasting

Your lead measure influence your lag measure but as the name indicates, it takes time before you notice the effect.

Focus on your lead metrics and adjust when they are not working.