CP big part of the Obesity problem in the UK is the fact that we have Central heating, but have not modified eating habits.
Like you i was born in the 60's, when the only form of heating in most homes was a coal fire in the living room, so yer we ate a lot of fats, which we burned off trying to keep warm. Plus doing a lot of walking, and not stuck in front of some Electronic Device.
For most of us the only time that take away was eaten was on a Friday (Fish Night), now days you see loads of Mums shoveing 'MACSHIT' at their Children rather than making them a health snack, I sometimes feel that cooking a meal from scratch for a lot of young people is way too much effort..
Bowl of Fruit 'N' Fibre for Breakfast with Skimmed Milk... With a Coffee (Decaf)