Chairman Miaow said:
Dragonbums said:
If weight gain/loss is down to genetics how do you explain that obesity is such a recent epidemic?
Never before has food been available in such quantities at such low cost to so many who live life styles where obesity isn't instantly crippling. Never before have the circumstances been correct for the trait to express in large portions of the population.
Often hereditary traits require the right environment to express. For example, lactose intolerance only expresses in the presence of lactose. You would never know the difference otherwise. This is one of the most basic principles of genetics.
And it isn't all genetics or whatever, but that does have a far more significant role to play than people tend to think. In most cases the disadvantage can be overcome, but pretending the disadvantage does not exist or that it is minor for most people who struggle to maintain a healthy weight is ignorant.