The earliest fossil evidence for anatomically modern Homo sapiens dates back 300,000 years.
Do you think your ancestors cared about eating, drinking, and sleeping schedules? Or, is it more likely they ate when hungry, drank when thirsty, and slept when tired?
Your ancestors might agree on the benefits of drinking water, but they’d also agree about the lack of scientific evidence to drink an arbitrary number of glasses of water every day.
Drink 8 glasses, some say. Drink half your weight in ounces, others say.
Then there are anecdotes by Smithsonian and NPR that indicate you should drink when you’re thirsty. If you want scientific evidence, there you go.
Your ancestors would tell you to drink when you’re thirsty. Monitor your urine to ensure it’s clear or light yellow.
Are your ancestors wrong?
Our ancestors lived in a very different world, without air conditioning, processed food, or the regular 9 to 5.
I think the principles you raise are broadly right.
As with things like climate change though when the majority of the scientific community agree, I’m happy to follow their direction – be it with a healthy degree of scepticism 🙂
Is the world defined by our possessions, such as air conditioning, or by our necessities for survival, such as food and drink? Perhaps we need new definitions?
My view is it’s defined by our perception, although it’s undeniable that modern life has an impact on our body that early man didn’t have to deal with.