Health Investment: How Small Choices Compound Like Money

Just as money compounds over time, so do the effects of our health choices, for better or worse. Small, consistent actions, whether positive or negative, accumulate over years, often leading to irreversible outcomes. While the immediate impact might not be visible, the long-term consequences of lifestyle choices like diet, exercise, and sleep are profound.

This article explores the critical link between investing in one's health and financial well-being, emphasizing that a proactive approach to health is as crucial as financial planning. The insights shared are supported by medical professionals, including Dr. Mark Soth and Dr. Sam Hetz, ensuring a well-founded perspective.

The Importance of Healthspan

Most people are familiar with "lifespan," the total duration of life. However, "healthspan," the period of life lived in good health, is equally, if not more, important. The premise is that strategic allocation of time and money can significantly enhance both the length and quality of life.

Evidence supports this: - Canadians in the highest income bracket live, on average, 8.1 years longer in good health than those in the lowest. - A 2018 study revealed that Americans maintaining healthy lifestyle factors (no smoking, healthy BMI, regular physical activity, moderate alcohol intake, and high diet quality) live 12 to 14 years longer than those who don't.

Compounding Effects: Health and Finances

The incremental and exponential nature of compounding applies to both finances and health. Just as neglecting retirement savings can lead to insufficient funds later in life, ignoring health can result in chronic conditions that are difficult to reverse. Health naturally deteriorates with age, but early investment in health can significantly mitigate the impact of aging.

Both health and finances are common sources of regret, often stemming from a lack of foresight and prudence. This highlights the importance of delayed gratification in both domains. While immediate gratification from unhealthy choices or impulsive spending is tempting, the long-term benefits of discipline are substantial.

Uncertainty in Health and Investing

Both human bodies and financial markets are complex systems. While there's a vast amount of information available, it's often contradictory, and even the best evidence cannot guarantee specific outcomes. For example, despite leading a healthy lifestyle, the author was diagnosed with testicular cancer before age 40.

However, just as in investing, where low-cost total market index funds are widely recommended for most people due to their improved distribution of expected outcomes, there's "index fund level agreement" among medical professionals on certain health practices. This article focuses on these universally accepted principles: exercise, nutrition, sleep, and mental health.

Key Pillars of Health Investment

1. Exercise

Exercise is one of the most potent interventions for longevity and significantly impacts the quality of life.

• Cardiorespiratory Fitness (VO2 max): A 2018 study in the Journal of the American Medical Association found that individuals with below-average cardiorespiratory fitness for their age and sex have double the risk of all-cause mortality compared to those in the top quartile. This risk is comparable to, or even greater than, smoking.
• Guidelines: Most guidelines recommend a few hours per week of moderate-intensity exercise (e.g., running, biking, swimming) that gets you almost out of breath.
• Muscle Strength: Crucial, especially with age, as muscle mass (sarcopenia) begins to decline as early as the 30s. Strength training helps build muscle and bone density, protecting against injury and maintaining functionality as we age.
• Benefits: Beyond physical health, exercise can improve productivity and sleep quality.
• Investment: This can involve purchasing equipment (bikes, kayaks, hiking gear), gym memberships, or simply dedicating time to physical activity.

2. Nutrition

Nutrition is a complex field with often conflicting evidence. There's no "perfect diet" that suits everyone, and research often struggles with correlation versus causation.

• Broad Principles:
  • Avoid consistent consumption of foods that dramatically raise blood sugar (e.g., juice, soda).
  • Prioritize protein for muscle mass maintenance.
  • Consume fresh fruits and vegetables rich in fiber.
  • Avoid overeating.
  • Limit highly processed foods, alcohol, tobacco, and other drugs.
• Personalization: The best healthy diet is one that an individual can consistently adhere to. This mirrors the investing philosophy that the most important aspect of an investment strategy is one you can stick with.
• Investment: This can mean buying fresh, high-quality foods, dedicating time to meal preparation, or using meal delivery services to save time and ensure balanced portions.

3. Sleep

Sleep is fundamental for cognitive function, emotional balance, and physical well-being.

• Importance: Essential for brain health. Consistent inadequate sleep (less than 6 hours per night) increases the risk of cardiac problems.
• Investment:
  • Create an optimal sleep environment: dark, cool, and comfortable.
  • Maintain a consistent sleep schedule.
  • Avoid bright screens before bed.
  • Exercise can improve sleep quality.
• Caution: Sleeping pills are generally not recommended as they are correlated with shorter life expectancy. Natural, quality sleep is a "superpower."

4. Mental Health

Beyond physical health, happiness and enjoyment of life are crucial for overall well-being and longevity. Happier individuals tend to live longer.

• Impact: High subjective well-being (life satisfaction, optimism, positive emotions) is linked to better health and longevity. A study found that unhappy people had a 14% higher chance of death over a follow-up period compared to very happy people.
• PERMA Model: This model describes factors contributing to happiness:
  • Positive Emotion: Feeling good.
  • Engagement: Being absorbed in challenging tasks that match skill levels (flow states).
  • Relationships: Maintaining strong, healthy connections.
  • Meaning: Having a sense of purpose beyond oneself.
  • Accomplishment: Achieving important goals.
• Relationships: Research, particularly from the Harvard Study of Adult Development, highlights the powerful influence of relationship quality on long-term health. Stronger social networks are associated with longer lives.
• Investment: Dedicate time and, in some cases, money to nurture relationships. This can involve paying for activities with friends, trips, or services (like house cleaning or meal delivery) to free up quality time with loved ones. Neglecting relationships is a common regret.

Interconnectedness and Reinforcement

Exercise, nutrition, sleep, and mental health are not isolated components; they are deeply interconnected and mutually reinforcing. For example, exercise and diet can improve sleep, and all three contribute to better mental health. This creates a positive cycle that significantly benefits health and well-being in both the present and the future.

While these investments require deliberate effort, the time and money spent on facilitating exercise, improving diet, enhancing sleep quality, boosting mental health, and nurturing relationships are among the most valuable allocations one can make.