Survey results revealing that cells sit for 10 hours a day & cells are aging if exercise is insufficient

ByTim Evanson

People who sit for a long time and do not exercise so much in the survey conducted by a research team at the University of California, San Diego School of Medicine have a biological age higher by 8 years than those who are not so I understood that. Since the subject of survey is "elderly women", we do not yet know whether men and young women will have the same tendency.

Too Much Sitting, Too Little Exercise May Accelerate Biological Aging

The findings are published in the American Journal of Epidemiology.

Associations of Accelerometer-Measured and Self-Reported Sedentary Time With Leukocyte Telomere Length in Older Women | American Journal of Epidemiology | Oxford Academic

Surveyed were white women aged 64 to 95 and African-American women participating in the Women's Health Initiative (WHI), a research program on post-menopausal women's health, totaling 1481 Man. The average age is 79.2 years, the standard deviation is 6.7. We installed an accelerometer on the waist on the right of the subject and measured the "how much you are sitting a day" "How much exercise is being done" for seven days.

ByClem Onojeghuo

The results of the measurement show that people with a physical activity (MVPA) above moderate strength (MVPA) less than 40 minutes sitting around 10 hours a day (8.5 hours to 10.7 hours) have a short leukocyte telomere length about. For women whose median MVPA was median, there was no relationship between sitting time and telomere, and "In women who do not exercise so much, between the sitting length and the length of the telomere It can be said that the relation is seen. "

Telomere plays a role of protecting both ends of a chromosome, and as the cell ages, the length of telomeres gets shorter and the chromosome gets frayed. It is known that telomere shortens in aged cells.

"This study showed that the lifestyle that we just sit on will speed up the aging of the cells, not necessarily the ages on the calendar and the biological age," said thesis Be the first author ofAladdin ShadyabDoctor. In the future, we are planning to investigate men and young women as well.

ByKeith Allison

in Science, Posted by logc_nt