Poor energy levels, aches and pains, inability to sleep, worrying about heart disease, strokes and cancer shouldn't be considered normal.
Human beings are social creatures. In isolation, we die. In communities, we have the opportunity to thrive, but it's not so easy for everyone. We depend on good social models, to give us a clear idea of how to behave, in order to live well. We use strong social models to guide our behaviour.
For instance when President Eisenhower had a series of heart attacks, the whole of America was "educated" about heart disease. Sadly, most of what was "taught" was scientifically wrong, but those ideas are so strong, many of us still believe them. The best available, but wrong doctors advice, helped to kill him.
Friends and Family
Your family are your first models. Long before you are five, you have learnt how to respond to offers of help, to food, to friendship, and to love. You also know how to deal with questions, to threats and how to keep yourself out of trouble.
In particular we eat and drink in a social way. We look like each other, not only because we are genetically connected, but because we are socially and behaviourally connected. People from other families you associate with are
"like you" too. We share with them all a "lifestyle." If we eat the same foods we feed to fatten our live-stock ourselves, it's no wonder we also get fat.