> Sour is slightly different: It is detected by taste bud cells that respond to acidity, researchers recently learned.

Recently? Come, now.

> If an animal takes in too much salt, the body tries to compensate, holding on to water so the blood won’t be overly salty. In many people, that extra fluid volume raises blood pressure. The excess fluid puts strain on the arteries; over time, it can damage them and create the conditions for heart disease or stroke.

This flawed narrative was debunked years ago.

The correct one is something like this: the body can get used to a wide range of sodium intakes. Sodium-following fluid movement is temporary effect. Only certain individuals have a sensitivity linking blood pressure and sodium.