For many people, fitness is more than just a hobby—it’s a lifestyle. Trainer Eric North—who goes by the Happiness Warrior online— is one of these people. At 61, he trains regularly and is in great physical condition.

North is an advocate for any and all movement. “Regular physical activity reduces stress, improves mood and boosts cognitive function, all of which contribute to a more positive outlook and enhanced decision-making abilities,” he says.

“By embracing a lifestyle that values movement and nourishment, we not only extend our years but also enrich their quality, ensuring that we have the vitality and energy to pursue our passions, connect deeply with others, and contribute meaningfully to the world around us. In essence, fitness is not just about avoiding illness; it is about e

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