Part of the problem is the woefully poor understanding in the general public, I mean let's just look at one singular example - in recent studies of the FTO gene related to the hunger hormone ghrelin.
"People have two copies of the FTO gene - one from each parent - and each copy comes in a high- and a low-risk form. Those with two-high risk copies of the FTO gene are thought to be 70% more likely to become obese than those with low-risk genes."
http://en.wikipedia.org/wiki/FTO_gene#Association_with_obesity
16% carry 2 rogue copies of the DNA and are 70% more likely to be obese
49% carry one flawed FTO gene and are 30% more likely to be obese
Just one of literally countless factors, if it really is about laziness - how can simply carrying a flawed gene be such a strong predictive variable when ascertaining how likely a person is to become obese?.
"People have two copies of the FTO gene - one from each parent - and each copy comes in a high- and a low-risk form. Those with two-high risk copies of the FTO gene are thought to be 70% more likely to become obese than those with low-risk genes."
http://en.wikipedia.org/wiki/FTO_gene#Association_with_obesity
16% carry 2 rogue copies of the DNA and are 70% more likely to be obese
49% carry one flawed FTO gene and are 30% more likely to be obese
Just one of literally countless factors, if it really is about laziness - how can simply carrying a flawed gene be such a strong predictive variable when ascertaining how likely a person is to become obese?.