Some basic ideas from the book "Quench" by Cohen and Bria.
As Dr. Stites pointed out, coffee makers tend to mark off "cups" in 5 oz.amounts. As my nurse practitioner said, don't count caffeinated beverages as hydrating ones. For me, when I didn't count them, I was left with very little water by mouth.
On the pages of the Hydration Foundation, Bria notes impaired electricity transmission by highly treated water.
"Conductivity (Electrical Conductance) and Water Completed - USGS.gov
Science Publications Water and electricity don't mix, right? Well actually, pure water is an excellent insulator and does not conduct electricity." If you are interested in our body's use of electricity, you might want to see "The Spark of Life: Electricity in the Body" by the Oxford scientist Frances Ashcroft.
The book advises paying strong attention to eating vegetables, such as cucumbers, that have plenty of internal water.
Cohen and Bria emphasize the role of the body connective tissue, fascia, as a major hydration conduit.
I have never been very affected by the lift power of coffee or tea but I have been drinking a pint of water first thing upon rising and it is very satisfying.
Used copies of "Quench" are available through the Amazon book section at low costs.
