I'm 74. Retired 9yrs. Was a very fit 14st for years.Put on 1.5 st since. totally unable to shift it. Nurse said 'can't see what u r doing wrong'. Still in v.good condition. Walk every day, cycle a bit. Nothing prevents me from activity. Follow a fairly healthy eating regime. Never smoked. Social drinker. Apart from starving myself to death I see NO remedy. Been described as DISCUSTINGLY HEALTHY! Tried a few diets. None have worked.