Just why would you want to "FIX" that? No one has yet found a technological way to "fix" the other pure biological instincts (food/liquid intake, for example). A "technological" way of "fixing" these "drives" would have in my humble opinion also catastrophic consequences in the human perception of the world and its need for sustainable solutions in water, food & other resources production and distribution.
You run into the risk of turning into a solution-driven technology dependent kind of human robot.
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