So many of man’s misery comes from the fact we have changed our environment far too rapidly for us to adapt to it. Consider:
Then Now
Pick fruits and vegetables and eat them immediately. Eat irradiated, frozen and processed fruits and vegetables that sat in storage 6 months and came from the other side of the earth.
Sleep when the sun is down. Sleep according to work schedules.
Active Sedentary
High calorie fats and sugars hard to come by. High calorie foods in abundance.
Salt hard to come by. Salt in abundance.
Live in small bands. Live in giant cities.
One person does all the tasks to stay alive. Specialisation.
Dealing with predators. Dealing with advertisers and other con men.

~ Roedy (born: 1948-02-04 age: 64)