Survival of the fittest: Why fitness matters for Leadership longevity

In my classes, I am often asked what makes a good leader or what the most important quality of a leader is. My answer is always the same, and I give it without a second’s thought: health.

“Survival of the fittest” is often associated with evolution, but the phrase applies just as strongly to modern leadership. In today’s demanding corporate world, the ability to lead effectively over decades requires more than intelligence, strategy, and experience. It also requires physical stamina, mental resilience, and long-term discipline.

Many business leaders today continue to lead major organisations well into their later years. What often distinguishes them is not just their experience but their commitment to maintaining physical and mental fitness. Their routines demonstrate that leadership longevity is closely connected with personal wellbeing.

Leadership is a Marathon, not a Sprint

Running a company, especially a large organisation, demands relentless energy. Long meetings, constant decision-making, travel, and crisis management can take a toll on the body and mind.

Leaders who remain physically active often report that exercise helps them maintain:

• Sharper decision-making
• Higher energy levels
• Better stress management
• Improved mental clarity

This is why many successful executives incorporate fitness into their daily routines. For them, exercise is not a luxury; it is a leadership tool.

BUSINESS LEADERS WHO PROVE AGE IS NOT A BARRIER

Warren Buffett — Discipline Beyond Finance

At over 90 years of age, Warren Buffett remains one of the most influential investors in the world through Berkshire Hathaway.

While Buffett is not known for extreme fitness routines, his longevity highlights the importance of mental discipline, consistency, and routine. He maintains a structured daily schedule that allows him to stay mentally sharp and engaged in business decisions.

His example shows that maintaining long-term leadership requires consistent habits and intellectual fitness, even if one’s exercise routine is modest.

Ratan Tata — Grace, Energy, and Continued Engagement

I had to include Ratan Tata in this list, even though he passed away in 2024.

Indian business icon Ratan Tata continued to remain active in business and philanthropy well into his later years.

Even after stepping down as chairman of Tata Group, Tata remained deeply involved in investments, mentoring entrepreneurs, and guiding emerging companies.

Those who have worked closely with him often spoke about his energy, sharp thinking, and disciplined lifestyle, which allowed him to stay engaged despite decades of leadership.

Something curious that I wanted to point out about his lifestyle was his love for animals. He loved dogs, and this is evident from the fact that their premium hotel property in Mumbai allows stray dogs to wander into the lobby; something you would rarely see at any other five-star property anywhere in the world.

Mindfulness towards nature and other living beings is also very important for a leader’s mental health.

Narayana Murthy — The Discipline of Simplicity

Narayana Murthy, the founder of Infosys, is another example of leadership longevity supported by discipline.

Murthy is known for his simple and structured lifestyle. Early rising, regular walks, and a balanced routine have long been part of his daily life.

His leadership philosophy emphasises integrity, clarity of thought, and personal discipline, qualities that often correlate with long-term physical and mental wellbeing.

Michael Bloomberg — Fitness as a Leadership Habit

Michael Bloomberg, founder of Bloomberg L.P., continues to remain active in business and philanthropy in his eighties.

Bloomberg has long emphasised daily exercise and structured routines. His energy and continued involvement in global initiatives demonstrate how maintaining physical health supports leadership well beyond traditional retirement age.

Why Fitness Matters for Leaders

Leadership demands resilience, and resilience often starts with health. Regular physical activity can help leaders maintain:

1. Energy for demanding schedules Executives often work long hours and travel extensively. Fitness improves stamina and reduces fatigue.

2. Mental clarity Exercise increases blood flow to the brain, which supports better decision-making and creativity.

3. Stress management Corporate leadership inevitably involves pressure. Physical activity is one of the most effective ways to manage stress.

4. Longevity in leadership Leaders who prioritise health are more likely to remain active and engaged in business for decades.

A Lesson for the Next Generation of Leaders

The examples of Buffett, Tata, Murthy, and Bloomberg illustrate a powerful truth: leadership is not just about strategy; it is also about sustainability.

Building a successful career is important, but maintaining the health and energy to sustain that success over time is equally critical.

“Survival of the fittest” in the corporate world does not simply mean being the smartest or the most aggressive competitor. It means developing the discipline, resilience, and wellbeing needed to lead for the long run.

In many ways, the most successful leaders understand that taking care of their health is also taking care of their leadership.

Because in business, as in life, those who endure are often those who prepare themselves not only intellectually, but physically and mentally as well.