Contrary to the old belief that thin people live longer than the fat one. But on the recent study made by Tohoku University Graduate School of Medicine in Japan, conducted a study of 50,000 people of ages 40-year-old to 79-year-old, within the 12 years of follow-up, it shows that more thin people had died earlier compare to mildly overweight.
Shinichi Kuriyama, an associate professor at Tohoku University's Graduate School of Medicine who worked on the long-term study of middle-aged and elderly people, said that skinny people run the highest risk to live short because of heightened vulnerability to diseases such as pneumonia and the fragility of their blood vessels. He even added that most thin people smoke and sick. But the difference was almost unchanged even when we eliminated these factors.
The study divided people into four weight classes at age 40 according to their body mass index, or BMI, calculated by dividing a person's weight in kilograms by their squared height in metres.
The normal range is 18.5 to 25, with thinness defined as under 18.5. A BMI of 25 to 30 was classed as slightly overweight and an index above 30 as obese.
My only argument about this study is how if you are really born thin or it runs in your family, it's in the genes. It's just so ironic that most Japanese are thin. And they still rank number one in the world that lives longer.
