Netflix star Jacob Bertrand, otherwise known as Hawk in 'Cobra Kai,' reveals the karate-style workout that keeps him in shape and ready for action.

And if that’s the case -thanks to years' worth of sitting for longer behind my desk than I should - I’m old before my time.

His owner told Newsweek that three-year-old Knuckles will "ask" to go on the treadmill at least six times per day.