Newton is reportedly suffering from short-term memory loss.Golfing legend Jack Newton with his wife Jackie.Source: News Corp AustraliaSpeaking to the Sunday Telegraph in October, Newton said he was embracing a healthy lifestyle to fight the condition.“Jack hasn’t touched a drop of alcohol or a smoke for 18 months,” wife Jackie said.“It’s been a big lifestyle change, but he’s exercising regularly and going OK.”Newton’s son Clint said: “We’re so proud of the sacrifices he’s made in the last 18 months.“He’s been a drinker and a smoker since his late teens. To give it all away cold turkey is incredible. This is his new challenge.”