Im'e 62 and been T1 for 46 yrs , The heaviest i've ever been is 14 stone , I used to go to a gym three times a week and always hovered around the 13 stone mark which as i'me 5 ft 11 didn't seem that bad , Since the pandemic and lock downs i've been walking anything from 2 - 10 miles a day and am now 11 st 4 , my insulin requirements have dropped by 2/3 s and I have never felt better , When all this is over i'me sticking to the walking which I prefer and is cheeper .