Take an other objective stats.As in baby in birth a PH of blood is less 8, thus alkaline is prevails.

 In adults is7.35 and lower happening. Am checked stats of analyses in children s oncology hospital and in all children's with oncology PH is less 7.3 , 7.28, 7.25, 7.23..therefore in the side of acidification. If to talk about the water hardness and softness, thus if we are drink soft water, thus calcium and salts less depositing. Thus a calcium a bad absorbing by organism, but why a tie for longevity with water softness? And a most soft water is in lake Baikal, and she is not having salts, she is always distilled, therefore all livers on Baikal are longevity, but  this is not a true. Peoples are living till 140/160 years a blood is not sour, but why? As in person in PH7.2 a lethal result displays, thus are a not a normal passing bio chemical reactions. And PH is fluctuating , but not till a blood sour. As more sour or or alkane , but a not less, than a 7.

As more older we are. thus more  acidifying an or blood. Why is wondering, that in longevity and a blood is sour? This is like people dead in car crash are eaten sour cucumbers. Yes a few meal is acidifies organism, as all meal, which we are eating are depositing with a forming substances in our body.

We are digesting theirs , and meal of digesting having a sour environment , or alkaline .Acidify are protein, fish, meat, milk and flour dishes, and alkalizes are any green and vegetables. And fruits also are acidifies and alkalizes , as for example a useful means eat a lemon, but he is sour PH is 5 till 6, but in internet you can see tables  with a names of alkalizing and acidifying products, as honey, lemon you can see as last, therefore this a law of equilibrium.