how has modern living made us weak, unhealthy and disease prone?

well look at all this processed food we eat, all the added preservatives colours. We don't even know what we are eating.
Pollution, we are poisoning ourselves with carbon emissions, in some countries its i think China as eg its the equivalent of smoking 70 ciggarettes a day!
We have vaccines and super cleaning agents, there is poor oppurtunity to build a strong immunity.
We also are chained to society and must abide to its ways, we cannot fend for ourselves anymore we rely on packaged goods and precooked meals and must create weapons as our bodies can no longer protect us.
Thus we are weak, unhealthy and disease prone.

Only those that live it. Those of us, that lead healthty lifestyles have no problems with dis-ease.
Peace.