New Research on Aging and Lifestyle Changes

It turns out that a few simple lifestyle changes might actually slow down how quickly we age biologically. This is based on some fresh research findings.

A study featured in the journal Aging took a closer look at how adjusting diet and adding some light exercise impacted men aged 50 to 74 over a three-month period.

The researchers conducted a clinical trial with 48 overweight men in Japan. For 12 weeks, half of these participants followed a structured wellness program, while the other half continued with their usual routines.

The intervention group was instructed to eat 100 grams of plain yogurt daily. Additionally, they received personalized dietary advice aimed at limiting overeating, reducing snacking, and cutting out sugary drinks.

They were also encouraged to engage in walking or using a stepper machine for around 30 minutes at least three times a week.

To evaluate any changes, scientists collected blood samples from all participants before and after the study. They also analyzed DNA for chemical alterations that could reflect cellular aging.

The researchers employed a measurement called DunedinPACE, which assesses the exact rate at which a person’s body is aging, as opposed to their chronological age in years.

The men who incorporated the yogurt, adjusted their diets, and exercised saw a significant decline in their pace of biological aging compared to the control group.

On average, there was about a 2.2% reduction in the speed of biological aging among those who participated in this structured program. Interestingly, this level of reduction was similar to outcomes from a prior U.S. study that lasted two years, where participants reduced their daily calorie intake by 25%.

Significantly, this slowing of aging was found to be independent of weight loss, meaning it wasn’t directly related to any changes in participants’ body mass index or how many exercise sessions they completed.

The researchers also noted improvements in a DNA marker related to kidney function among the participants.

Since the study combined three different factors—probiotics, diet, and exercise—it’s difficult to pin down the anti-aging advantages to any one element alone. It seems that the slowed aging rate results from the combined effect of these changes.

However, the researchers did point out some limitations. The study’s small sample size and short duration, along with the homogeneous group of overweight men from one nationality, warrant further investigation.

Ultimately, more research is needed to see if these short-term changes in biological aging could lead to lasting health benefits.