A study showed that if you do strength training 3 times a week for 1 hour each time, you can have a body that is 8 years younger on average.
Weight training is known to have a positive effect on bone and muscle health.A new study of 4,800 people found that people who did strength training, such as lifting heavy weights, had a younger biological age.
The researchers looked at the effects of weight training on the body and analyzed the length of ‘telomeres’ at the ends of chromosomes.
Telomeres are base pairs that protect DNA sequences at the ends of chromosomes. It serves to protect the distal end of the genetic material from unraveling, just as the end of a shoelace is wrapped with plastic to prevent it from unraveling. Humans maintain life through periodic cell division. Each time a cell divides, the length of telomeres shortens.When the length of telomeres shortens below a certain level, thay can no longer play a protective role. When this situation occurs, cells stop dividing and age or die.
Previous research has shown that people with long telomeres live longer than those with short telomeres, and that telomere length shortens with age.
The study analyzed blood samples and found that people who did the most weight training had the longest telomeres, and that the more frequently they exercised, the greater the benefits.
Ten minutes of weight training per week was found to lower biological age by about 5 months, and this benefit was consistent irrespective of age and gender.
According to research results published in the journal Biology, 90 minutes of strength training per week had the effect of making one’s biological age 3.9 years younger on average.
“All types of strength training appear to be related to telomere length,” larry Tucker, a professor of exercise science at Brigham Young University in the U.S. who led the study, told the British daily Telegraph.
Studies have shown that for every 10 minutes you spend doing strength training each week, your telomeres become an average of 6.7 base pairs longer. Therefore, it is estimated that if you do strength training for 90 minutes a week, your telomere length will be 60.3 base pairs longer on average.
Blood samples from participants showed that telomere length became 15.47 base pairs shorter on average for each additional year of age, so 90 minutes of weight training makes your biological age an average of 3.9 years younger. If you calculate this by assuming that you exercise strength 3 times a week for 1 hour each time, your biological age can be seen as 7.8 years younger.