With the continuous improvement of people's living standards and great changes in diet structure, the occurrence and death of cardiovascular and cerebrovascular diseases in China are also rising, and the proportion of deaths in the total mortality rate in China has even reached about 40%. Hypertension has become a worrying problem. Eating less salt is one of the ways to prevent and treat hypertension.

Then people in the fifties and sixties ate pickles every day. Why didn't there be so many people suffering from hypertension before?

The essence of eating pickles in 1950s and 1960s;

The body needs more.

In the fifties and sixties, people gave priority to physical labor, and sweating from physical labor would discharge a lot of salt. After a lot of work, they need more salt intake. Therefore, although people eat more salt, it will not lead to excessive imbalance in their bodies.

② The source of sodium is relatively simple, and the total amount is not as much as it is now.

In the fifties and sixties, although the vegetables were salty, the total amount of vegetables was very small. Food is mainly salt-free staple food. A big bowl of rice is a small dish of pickles, and there is little processed food. The source of sodium is almost salt, and the total intake of sodium is not more than now.

③ Balance of sodium and potassium

According to the research at home and abroad, sufficient potassium can balance the pressor effect of sodium and promote sodium excretion. In the 1950s and 1960s, there was a shortage of food. Whole grains, beans, potatoes, vegetables and fruits are all people's food. Relatively speaking, the proportion of people who eat polished rice and flour is relatively small. These foods are rich in potassium, which ensures the adequate intake of potassium.

In modern life, people no longer need so much physical labor, sweat less, and salt intake is gradually increasing. The food we eat contains a lot of sodium, so the proportion is seriously out of balance. The risk of hypertension has also increased.