"We are biological machines" I tend to disagree with this definition. The function of a body might look like a 'machine', but that machine is made of trillion

"We are biological machines" I tend to disagree with this definition. The function of a body might look like a 'machine', but that machine is made of trillions of small living beings (cells), all having the same properties as the larger organism - they need to breathe, eat and drink, they age and they multiply and each cell is a very specialised 'machine' in itself. So if you want to call the body a 'machine', then call it a 'machine of machines'. But there's more. Our bodies cannot exist outside of what we call 'nature'. We need to eat other living beings in order to live. The living beings in turn need to eat the remains of other living beings and so on. The circle of life is the flow of water, energy and a couple percent of other stuff (like minerals and proteins) through all living things. One thing is transformed into another and so on, forever. From that angle, living beings (including our bodies) are a process, a flow through the matrix of Life, rather than a static object or mechanism. This flow has continued since life first appeared and it has tuned itself to perfection. Until recently, when we started intervening. The obesity epidemic (and also cancers, cardiovascular diseases and many many other 'modern' health issues) are the consequence of humans tinkering with nature and our bodies. From this perspective I agree with the OP, it is probably impossible to have a healthy body in our society, until everybody becomes 'enlightened' about the nature of reality around them. But we have other issues, like which political party should win or what piece of land we need to grab. All this while eating millions of tons of synthetic pills (prescribed by doctors), consuming incredible amounts of meat grown in insane conditions and fed with synthetic foods mixed with drugs watered down with lots of alcohol, while breathing toxic air and drinking synthetic drinks. The only way to be healthy is to be part of the circle of life, but we are doing everything we can to disconnect ourselves from it and suffering the consequences.