Perhaps some people prefer to excrete more dilute urine? (As an aside for the curious, your water intake and your sodium excretion are virtually orthogonal - t

Perhaps some people prefer to excrete more dilute urine? (As an aside for the curious, your water intake and your sodium excretion are virtually orthogonal - the body is very, very good at retaining sodium while wasting H20 when necessary. Therefore, drinking lots of water will not cure hypertension or reduce your whole-body sodium burden.)