For excellent health benefits, it does one well to drink between 1.5 and 2 litres of purified or spring water (I use spring water, from artesian wells) upon awakening each morning. This water should be consumed alone, on an empty stomach (preferably all in one go). Drinking through the teeth is the method I had been taught originally, and it has served me well for quite some time. In fact, I have been doing this religiously for well over a decade and have found the majority of the dry skin issues I once had for many years to simply disappear... never to return!
After consumption of water, it is of vital importance to wait at least three quarters of an hour (I wait at least one full hour) before consuming anything else.
This therapeutic cleansing method will hydrate the body, cleanse/regulate the colon, repair many physical ailments, and increase overall well-being.
In addition to so many of these aforementioned wonderful virtues, this routine will also assist in management of body temperature and provide maximum hydration for the day ahead (hence alleviating the need to worry about whether enough water is being consumed throughout the day). This is the perfect heat management for hot Summer days, and also a wonderful way to maintain soft, supple skin during the especially drying Winter months.
Here is a simple explanation of the entire process (courtesy of vegsochk.org):