The Bare Minimum You Need to Do to Add a Year to Your Life

 Sleeping, eating, and exercise are crucial to health — and improvements in any of those categories can have big impacts. Now we’re learning that minimal changes to all three can improve health better than focusing on just one area alone. 

That’s the takeaway from new work from Australian researchers that suggests strong synergistic effects. The research is among the first to calculate the effects of lifestyle changes in combination. Findings suggest that adding just 5 minutes of sleep, 2 minutes of moderate activity, and half a serving of vegetables a day can add a full year to your life. 

Emmanuel Stamatakis, PhD

“The central clinical message is that modest combined changes across three behaviors may matter more than trying to overhaul one behavior in isolation,” said Emmanuel Stamatakis, PhD, a professor of physical activity and population health at the University of Sydney and Monash University in Australia.

In 2025, Stamatakis gained notice with a Nature Communications paper that showed each dose of 60 seconds of daily vigorous exercise could add years to lifespan and reduce the risk for cardiometabolic disease and cancer.

Now, drawing from UK Biobank data, his team’s latest findings show a synergistic effect that “argues against an all-or-nothing approach,” Stamatakis said. “If a patient is struggling to make a large change in one area, it may still be worthwhile to pursue smaller gains across several domains at once.”

The Bare Minimum for Longer Life 

The researchers started from a low baseline, creating a composite score for diet, physical activity, and sleep for study participants in the fifth percentile. These people slept about 5.5 hours a night, logged 7.3 minutes of daily moderate activity, and received a diet quality score of 36 out of 100. From there, the researchers set out to find the bare minimum improvements needed to improve lifespan and healthspan.

Here are some conclusions, from the paper published in eClinicalMedicine:

• The minimum: People who added 5 minutes of sleep, 2 minutes of at least moderate activity, and a small diet change such as a half serving of vegetables daily lived 1 year longer than those with the lowest baseline.
• The optimum: Getting 7.2-8 hours of sleep, 43 minutes of moderate activity, and a high-quality diet (score, 57.5-72.5 out of 100) was linked to more than 9 years of additional healthspan and lifespan.
• The synergy: The math shows that these changes multiply each other’s powers. For example, if you rely on sleep alone to add a year to your life, you need an extra 25 minutes a night. But if you combine it with 2 minutes of activity and half a serving of veggies, you need only 5 minutes of additional sleep to get that same extra year.

“What stood out most was how small the estimated combined changes were for a meaningful signal,” Stamatakis said. “We are used to lifestyle advice sounding large, difficult, and sometimes discouraging. Seeing that a few extra minutes of sleep, a couple of minutes of moderate-to-vigorous activity, and a modest diet improvement were associated with an extra year of lifespan was striking.” 

“Equally striking was that the combination mattered so much,” he said. “Scientifically, that reinforces the idea that everyday behaviors interact in the real world, and practically it suggests a more hopeful, less overwhelming message for patients and clinicians.”

The researchers published a separate analysis in the European Journal of Preventive Cardiology that showed similarly small synergistic changes in sleep, activity, and diet lowered the risk for major cardiovascular events.

Call It ‘Progress Over Perfection’ 

That mindset, plus the flexibility of making several small changes, can be important, said Meagan L. Grega, MD, a lifestyle and family medicine physician in Easton, Pennsylvania, and chief medical officer of the Kellyn Foundation, a healthy neighborhood nonprofit initiative that she co-founded. She serves on the governing board of the American Board of Lifestyle Medicine and wasn’t involved in the study.

Meagan L. Grega, MD

Increased moderate-to-vigorous physical activity, is the strongest driver of improvement in lifespan and healthspan, she said, noting dramatic lifespan gains for each 5 minutes daily. Adding improvements in sleep and nutrition could achieve similar benefits with lower amounts of moderate-to-vigorous physical activity — “a more flexible and attainable path for many patients.”

To coach your patients toward small changes, start by asking, “What matters most to you?” Grega suggests. It could be strength and vitality to stay active with the family, or protecting cognitive health. Choosing the behavior gives the patient autonomy and helps them access their internal motivation. 

From there, examine barriers and strategies, Grega said. Improving sleep might mean “creating a consistent wind-down routine or setting a reminder to transition toward bedtime,” she said. “Reviewing a typical day together can uncover opportunities for brief ‘exercise snacks,’ or short bursts of movement woven into existing routines.”

For diet, take a cue from the recent study and suggest adding half a serving of vegetables a day. That’s about one medium carrot, half a bell pepper, or 4 ounces of vegetable juice. 

Stamatakis made the following relevant disclosure: He is a paid consultant and holds equity in Complement 1, a US-based startup whose products and services relate to physical activity promotion and other lifestyle changes. Grega had no relevant disclosures.

https://www.medscape.com/viewarticle/bare-minimum-you-need-do-add-year-your-life-2026a1000gch