You are overweight. I’m sorry to be blunt, but it’s probably true: most adults living in Western countries are overweight. A large portion is obese.

Half of you are taking at least one prescription medication. Half of seniors are taking at least three. You may not be on anything, but you know someone who is.

Does that sound normal? I mean, are perpetual chronic illness and obesity the normal state of existence for us? Is our wiring so inherently faulty that we can’t keep ourselves alive without pills and doctors?

No. Absolutely not. It wasn’t always like this, you know.

The first big turn happened with the Agricultural Revolution. Right around 10,000 years ago, when former hunter-gatherers began growing grain seeds in neat, organized rows, something happened. Population exploded, because we now had a steady source of calories. Villages and cities sprang up, because we no longer had to follow our food. We could simply grow it where we lived.