Lex Fridman Podcast: PM Modi reveals why fasting is his secret weapon

“I’m fasting right now. It’s been almost two days, 45 hours, just water, no food, in honour of this conversation.” – Lex Fridman

Fasting became an unexpected yet profound theme in Lex Fridman’s conversation with Prime Minister Narendra Modi. While Fridman approached fasting as an experiment in mental discipline and focus, PM Modi revealed how fasting has been an integral part of his life for over 50 years. Their discussion highlighted the intersection of modern science and ancient wisdom, showing how fasting goes beyond dietary restriction—it is a tool for self-mastery, heightened awareness, and personal resilience.

India is a nation where food is celebrated with almost religious devotion, where every festival carries its own culinary traditions. But it is also a land where the deliberate act of not eating holds deep spiritual and cultural significance. Fasting in India is not just about skipping meals; it is a practice of discipline, purification, and self-restraint. While figures like Mahatma Gandhi turned it into a political weapon, others, like PM Modi, use it as a lifelong personal discipline.

Fridman’s Experiment: A Test of Focus and Awareness

Lex Fridman, a researcher and podcast host, began the conversation by revealing that he had been fasting for 45 hours, consuming only water in an attempt to sharpen his focus. For him, fasting was an experiment—a temporary practice designed to test its impact on his mental clarity and sensory awareness.

PM Modi immediately recognised this shift in perception, explaining how fasting naturally heightens the senses:


“You may have noticed, when you fast, your senses—smell, touch, taste—become highly sensitive.”

Fridman agreed, describing how he could suddenly detect the aroma of water—something he had never noticed before. He found his mental clarity had improved, making the conversation feel more immersive and intense.

Modern scientific research aligns with this experience, showing that fasting can enhance cognitive function, boost alertness, and improve decision-making. While Fridman had only fasted for two days, he already felt its effects on his concentration and sensory perception.

PM Modi’s Fasting: A Lifelong Discipline

For PM Modi, fasting is not an experiment—it is a way of life. Unlike Fridman, who was testing its effects for a short period, PM Modi has followed a structured fasting routine for over five decades, rooted in India’s spiritual traditions and his own personal discipline.

He described his fasting schedule:

Chaturmas: A four-month period (June to November) where he eats only once a day.
Navratri Fasting: A nine-day fast, twice a year—in one, he consumes only hot water; in another, he eats just one type of fruit per day.
Ayurvedic Preparation: Before long fasts, he hydrates extensively and follows cleansing rituals to prepare his body.
PM Modi spoke of fasting as a transformative experience, explaining:

“For me, fasting is a form of self-discipline. It is an act of devotion. It doesn’t slow me down—it makes me sharper.”

Unlike the common perception that fasting weakens the body, PM Modi views it as a means to re-energise the mind. He explained that fasting is not simply about avoiding food but about rebalancing the body and mind, increasing willpower, and creating inner balance.

Fasting and Leadership: Strength in Simplicity

One of the most striking moments in the discussion was when Modi recalled fasting during a White House visit with US President Barack Obama.

“When we sat down for dinner, they brought me a glass of hot water. I turned to President Obama and jokingly said, ‘Look, my dinner has arrived.’”

This anecdote illustrated how fasting does not hinder his responsibilities—he carries out his duties at the highest level without breaking his discipline. Even when surrounded by world leaders at formal state dinners, PM Modi sticks to his fasting schedule.

Fridman was particularly impressed by this level of discipline, noting that fasting, especially in demanding roles, is a test of willpower, control, and resilience.

For PM Modi, fasting is not a hindrance but a source of strength. In a world where power is often associated with consumption and indulgence, he views restraint as a greater force. His ability to fast while managing the affairs of a nation is a testament to how deeply fasting is ingrained in his lifestyle, not just as an occasional practice but as a lifelong commitment.

The Science and Spirituality of Fasting

Fasting has always been viewed through two perspectives:

The scientific approach – which examines fasting’s effects on cognitive function, metabolism, and longevity.
The spiritual approach – which sees fasting as a path to self-discipline and inner purification.
PM Modi explained how fasting helps him remain mentally sharp and spiritually grounded, aligning with Indian traditions that have long viewed fasting as a means to strengthen the mind and body.

Meanwhile, Fridman, despite fasting for just 45 hours, felt a profound shift in his awareness. He noted: “My ability to be present, to sharply focus on this conversation, is elevated.”

His experience reinforced what spiritual traditions and modern science both suggest: fasting is not just about food—it is about regaining control over the mind and body.

A Shared Philosophy: Mastering the Self

Though their backgrounds and motivations differ, both PM Modi and Fridman acknowledged fasting as a powerful tool for:

Mental clarity – Enhancing awareness and focus.
Discipline – Strengthening willpower and resilience.
Self-mastery – Gaining control over impulses and desires.
For PM Modi, fasting is a lifelong discipline, a practice refined over decades, an act of spiritual devotion, and a key part of his daily life as a leader.

For Fridman, it was a temporary experiment, but one that gave him a newfound appreciation of fasting’s impact on mental and physical performance.

Their conversation highlighted fasting not just as a tradition but as a deeply personal practice that fosters self-mastery, resilience, and mental sharpness. Whether approached from a spiritual or scientific perspective, their discussion underscored one fundamental truth—fasting is far more than just not eating. It is a practice that transcends cultures, philosophies, and generations, offering a path to greater clarity, focus, and self-control.