Comment by CJefferson
3 years ago
The problem is, it isn't efficient if you are overweight :)
When I was at my heaviest weight, I could only do a normal-speed walk, which burned relatively little calories.
At my lightest, I was also having to go out of my way to eat extra calories, as I was cycling so much, and a fast 90 minute cycle would leave me light-headed if I didn't eat some extra calories.
This is primary that thing where exercising makes you more fit and in the long term more active in general. Because what was previously tiring straining activity suddenly becomes pleasurable. And if you eventually manage to stumble upon activity you actually like, it is way easier to do it then to sit at home hungry, passive and obsessed about how miserable you feel (until said person will break and eat a candy or something similar).