What’s that one thing? Quit eating salt. Eat from 65-300 mg of salt/day for your whole life, and you will probably never get overweight, nor will you get high blood pressure.
The Yanonamo have also been studied by medical researchers of hypertension because there has never been a case of high blood pressure recorded among this group in an aboriginal state. There is a simple reason for this, but no one accepts it. The reason is that they only ingest ~65mg of salt per day for their whole lives. This tribe also has never recorded one case of obesity.
Keep in mind that these are probably some of the violent people on Earth, and one would assume that their lives are rather stressful. Their lives are characterized by high levels of violence. Yet all of this “stress” doesn’t seem to raise their blood pressure one bit. So much for the stress = hypertension theory. Stress alone will not give any human being high blood pressure. It is neither necessary nor sufficient to cause this condition. It can cause it in combination with another factor though.
Another group in the Solomon Islands was found recently, a village of 3,000 people who did not have one case of either high blood pressure or obesity. However, one of the villagers left to move to an urban area where he stopped eating his village diet and lived instead on modern foods, and he became overweight and developed high blood pressure. This group also eats almost no salt – under 300mg/day.
High blood pressure is caused by excessive salt ingestion. Other factors add onto it and act in concert with that, but the bottom line is that if all of us ate less than 300mg of salt a day for our whole lives, there would be little if any high blood pressure in modern society. Nobody believes this because the “salt theory” has fallen by the wayside, but that’s bad science.
What happens is that excessive salt ingestion poisons and damages the kidneys of many modern people. The kidneys become damaged by the salt, and then high blood pressure may develop either alone or in concert with other factors.