At 73, Joseph Grassadonia is living proof that age doesn’t have to slow you down—it just makes you smarter about how you train, fuel, and recover. A lifelong surfer and the editor of OnFitness Magazine, Joseph credits his vitality to a powerful combination of intermittent fasting, strength training, and CBD oil. From the gym to Oahu’s waves, he's proof that with the right tools, age is just a number.