Sorry if this is a very obvious question
So yesterday I got a wonderful free check up with the chest , heart and stroke foundation
It was so so helpful
Lots of useful info
The lady was concerned as my basal metabolic rate was the lowest she has seen in a long time
Now in my 30s I was so much slimmer and found it easier to lose weight
Now early 40s naturally it is much harder
But why such a huge difference ??
Sorry if this seems like a daft question