103-year-old runner who was diagnosed with cancer at 69, reveals how he naturally cured cancer and arthritis and shares his longevity secrets

At 103, Mike Fremont isn’t just alive, he’s thriving. While many slow down with age, Mike still climbs stairs, paddles canoes, and once ran 10 miles a day until the age of 98. His secret? A powerful mix of discipline, simplicity, and a lifestyle rooted in nature.

Back when he was 69, Mike was told he had only three months to live unless he underwent surgery for cancer, which he revealed in an interview with a YouTuber. But instead of surrendering to fate, he took charge. He embraced a plant-based macrobiotic diet inspired by The Cancer Prevention Diet by Michio Kushi. Over time, not only did his cancer disappear, but his arthritis also faded.

Since 1994, Mike has followed a clean, plant-based diet. But this isn’t the trendy kind with exotic powders or complicated recipes. His daily menu is almost humble: brown rice, steamed vegetables like kale, carrots, and cabbage, seaweed for minerals, and most notably, half a can of beans every single day.

There’s a reason for that last part. Legumes are rich in fibre, protein, and phytochemicals that research links to reduced cancer risk. The World Cancer Research Fund highlights how plant-based diets can play a role in cancer prevention and overall immune health.

Mike also avoids processed sugar, meat, dairy, and packaged foods. He prefers food in its most natural state, boiled, steamed, or fermented. No oils, no deep frying, and definitely no shortcuts.

What stands out about Mike isn’t just that he’s 103. It’s how he moves through life, literally. Until he was 98, he ran 10 miles, three days a week. He also climbed stairs 48 times a day. Even now, he does pull-ups and paddles his canoe with ease.

For him, movement isn’t a task; it’s like breathing. According to the CDC, regular physical activity helps slow ageing and keeps joints and cognitive health in check. Mike never followed trends or workout plans. He just stayed active, every single day, in ways that felt natural to him.

Sleep is one of those things that often gets sacrificed, but for Mike, it’s sacred. He sleeps 8–9 hours each night. No alarms, no screen time before bed, and no fancy routines. Just rest—deep, undisturbed rest.

Studies back this up. Quality sleep is essential for repairing cells, reducing inflammation, and supporting cognitive function. In Mike’s case, honouring his body’s natural need for rest seems to have worked wonders.

Mike doesn’t take pride in avoiding doctors—he just hasn’t needed them much. He believes food healed him. And he lives in harmony with nature. He grows some of his own food, drinks filtered water, avoids chemical-laced products, and takes joy in being outside.

That connection with nature isn’t just poetic. Time spent in green spaces can lower cortisol (the stress hormone), improve sleep, and even increase immunity through exposure to beneficial microbes found in soil. Mike’s habits reflect those findings, even if he never consciously followed the research.

It’s tempting to look at Mike’s story as a miracle. A 103-year-old man who beat cancer, arthritis, and still does pull-ups. But the real story is about showing up every day.

There were no sudden breakthroughs. Just a quiet commitment to real food, regular movement, deep rest, and living in tune with the environment. Science supports many of the choices Mike made—but what’s even more powerful is that he made them before they became mainstream.

And he’s not selling anything. No supplements, no programs—just his story. A story that says, maybe ageing isn’t about adding more, but about returning to what was always essential.



Credit: The details of Mike Fremont’s journey were shared by the content creator The Most Motivational Podcast, and verified from available public interviews and health sources.

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• 7-9 hours of sleep.

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