Credit: SWNS<br /><br />Meet the all-action grandad who still does martial arts every day - at the age of 92.<br /><br />Lew Burja credits his long-lasting health to tai chi and kung fu.<br /><br />He started in his 50s after a bout of chest infections and niggling pain in his back.<br /><br />Forty years on and the grandad-of-three is fighting fit.<br />
