SludgeFactory
Platinum Member
- Sep 14, 2001
- 2,969
- 2
- 81
There are a number of studies on genetics & obesity, some involving twins, and the rough consensus seems to be that genetics is anywhere from 40-70% responsible. Obviously the environment is implicated in obesity too, and has changed tremendously since 1975 or 1980 or wherever you want to draw the arbitrary line.
And losing weight with diet alone is certainly possible, but there's a lot less margin for error, and when it comes to maintaining a reduced weight, people without exercise are more likely to fail. The National Weight Control Registry (database of people who've lost weight) shows a substantial majority of people who manage to keep weight off are also regular exercisers.
And losing weight with diet alone is certainly possible, but there's a lot less margin for error, and when it comes to maintaining a reduced weight, people without exercise are more likely to fail. The National Weight Control Registry (database of people who've lost weight) shows a substantial majority of people who manage to keep weight off are also regular exercisers.
