Danger and risk of death increase more rapidly if it is reduced by 5 km or more after 20 years old

It is often thought that being thinner is better than being generally fat, but it is obvious from the results of the Ministry of Health, Labor and Welfare that the death rate increases as a result of how thin it is after the age of 20 became.

Although it is an incredible story to the least, what on earth is it exactly? In addition, surprising results have been announced that the relationship between weight gain and risk of death is unrelated.

Details are as follows.
Relationship between weight change and mortality rate - Overview -

According to this page, the research team of the Ministry of Health, Labor and Welfare surveys about 90,000 men and women aged 40 to 69 years over a 13-year period until 2005, investigating diseases such as cancer, stroke, myocardial infarction and other diseases and lifestyle habits It is said that.

And by the time we received a questionnaire survey from the age of 20 at the age of 90,000 people weighingPerson who decreased by 5 kg or moreWhenPerson who increased by 5 kg or more,Person who weigh less than 5 kgWe examined the relationship between total mortality, cancer, and cardiovascular disease mortality, and found that the following results were obtained.

Male data. The result that the mortality rate of people who decreased by 5 kg or more in any age group is the highest. In addition, it is surprising that the death rate of people who increased their weight is the lowest.


Women also have the highest mortality rate for those who lost weight as well. However, unlike men, we can see that the death rate of people who increased by more than 5 kg is higher than those who do not change weight.


Taking this result into a table looks like this. If the death rate of a person with constant weight is set to 1.0, the total mortality rate of people who lost weight will increase to 1.44 times. Incidentally, this table seems to take into consideration the influence of age, physique at the beginning of tracking, smoking situation, drinking situation, exercise habit, chronic diseases (hypertension, diabetes, liver disease, kidney disease).


In addition, depending on the physique at the age of 20, it was divided into "obese" group and "no obesity" group, and the association between weight change and total mortality rate after that was examined. As a result, in men, obesity It is said that weight loss after that regardless of the presence or absence increased the risk of mortality rate, conversely it was said that neither gender nor male and female increased the risk of death due to weight gain.

In the United States and Europe, it is said that weight gain from 20 years old influences the subsequent mortality in research, but the Japanese physique is considerably small compared with that in the West and the influence by the weight gain is almost It is said that it is not approved, rather it is said that the weight loss increases the risk of total death in both males and females, and in men the risk of cancer and cardiovascular disease death increases.

Incidentally, this research observes the change in body weight from the age of 20 as a natural course, weight loss by so-called diet is not influenced, weight loss is caused by smoking, liver disease and diabetes It is considered that various health problems such as chronic diseases such as chronic diseases such as nutrition and malnutrition are considered to be in the background.