How has the need for water changed over time? Are humans more dependent on water now than in the past?

in the past our survival instincts were higher and we were likely more adapted to require less water, nowadays we tend to rely on water more as well as the accessibility of it, an example of this dependability is when snow or cold temperatures cause the water to freeze leaving people with a shortage of water, this affects people greatly, much more than it would have in the past likely

Prior to 1777, enlistment in the Continental Army was of various durations but generally for a year of service. After 1778, Congress changed the rules and men served for either three years or the duration of the war. In some cases, bounties were paid to entice men to enlist or for men who chose to serve longer.