20% of the causes create 80% of the outcomes. Also known as The Pareto Principle.

Identify 20% of the activities that give you 80% of the results.

If it’s a positive outcome activity (investments, productivity) focus on that 20%.

If it’s negative (causes of stress, or bad health) eliminate that 20% first.

Sources/Further Reading

• https://fronterablog.com/how-to-apply-the-80-20-rule-to-get-ahead-in-life/
• https://en.wikipedia.org/wiki/Pareto_principle
• https://www.investopedia.com/terms/1/80-20-rule.asp