That's because most of us eat crap, brought to us by Big Food.

And many of us never get outside enough to enjoy the many benefits of the sun.

We have to teach ourselves again the basics our grandparents already knew about.

On food and extending the life of one's dog:

https://www.amazon.com/Forever-Dog-Surprising-Companion-Healthier-ebook/dp/B08QJFSK2R