Most people have heard the general advice a hundred times: move more, lower your risk of diabetes. It's the kind of health tip so familiar it practically fades into background noise, repeated so often that it stops carrying any real weight. Vague advice rarely changes behavior, because it never answers the question that actually matters: how much movement, exactly, and does it even make a meaningful difference for someone like me?
A major new study, presented at the 2026 Annual Meeting of
the European Association for the Study of Diabetes in Milan, finally puts hard
numbers behind that question. Researchers tracked nearly 88,000 adults and
found that people who moved more had a dramatically lower risk of developing
type 2 diabetes, with the size of that benefit depending heavily on something
nobody usually talks about: age.
The Study: Real Activity Data From Nearly 88,000 People:-
The research came out of Leiden University Medical Center in
the Netherlands, led by Dr. Diana van Heemst, using data from the UK Biobank,
one of the largest and most detailed long-term health databases in the world.
Rather than relying on people's memory of how much they exercised, which
notoriously tends to be optimistic, researchers had 87,975 adults without
diabetes wear a wrist-based activity tracker for seven consecutive days. This
gave the team an objective, minute-by-minute record of exactly how much
moderate-to-vigorous physical activity, often shortened to MVPA, each
participant actually got.
Over an average follow-up of 7.7 years, 2,140 participants
went on to develop type 2 diabetes. When researchers compared activity levels
between those who developed the condition and those who didn't, a clear pattern
emerged. People in the more active group logged a median of 409 minutes of
moderate-to-vigorous activity per week, well above the World Health
Organization's recommended minimum of 150 minutes. The less active group
managed only about 121 minutes weekly, falling short of that baseline target.
The difference in outcomes was substantial. Among adults
younger than 63, those in the less active group had more than double the
relative risk of developing type 2 diabetes compared to their more active
peers. As Dr. van Heemst summarized the findings, the core message is
straightforward: all adults should be encouraged to be as active as they can,
since more physical activity is consistently linked to lower type 2 diabetes
risk, regardless of which specific population group someone falls into.
Why Age Changes the Math:-
Here's where the research gets genuinely interesting, and
where the findings push back against a common assumption. You might expect
exercise to matter most for younger people trying to prevent a disease decades
down the road. The data tells a more layered story.
Among adults aged 63 and older, lower levels of physical
activity were associated with a 65% higher relative risk of developing type 2
diabetes. Among people who already had prediabetes, that number climbed even
further, to a 54% higher relative risk tied to lower activity levels
specifically within that group. Yet when researchers looked past relative risk
and examined the absolute numbers, meaning the real-world count of new diabetes
cases prevented, older adults actually stood to benefit the most from staying
active. That's because type 2 diabetes incidence rises substantially with age
across the entire population, so even a proportionally similar risk reduction
translates into far more prevented cases among older adults than younger ones.
In plain terms: younger adults who are inactive face a
bigger relative jump in risk, but because diabetes is simply more common later
in life to begin with, getting older adults moving appears to prevent the
greatest absolute number of new diabetes cases at a population level. Both
groups benefit, but the practical payoff looks different depending on where
someone stands in their life.
Does It Matter When You Exercise:-
One of the more unexpected threads in this research involved
timing, a factor rarely discussed in standard exercise guidance. The study
found that activity occurring between early afternoon and midnight was
associated with a 10% lower relative risk of type 2 diabetes compared with the
same amount of activity done in the morning.
This finding lines up with a separate but related body of
research on ultra-processed food and diabetes risk, also presented using UK
Biobank data this year, which found that people who combined lower
ultra-processed food intake with regular moderate-to-vigorous activity were up
to 70% less likely to develop type 2 diabetes, even among participants with a
strong genetic predisposition to the disease. Meeting the basic MVPA
recommendation alone was tied to a 33% lower risk in that research, reinforcing
just how much consistent movement, regardless of genetic starting point,
appears to matter.
It's worth being careful here, though. The timing finding is
a modest association, not a dramatic effect, and researchers haven't fully
established why afternoon or evening activity might carry a slight edge. It's a
detail worth knowing, not a reason to abandon a morning workout routine that's
already working for you.
What Kind of Exercise Actually Counts:-
A natural question follows all this: does the type of
exercise matter, or just the total minutes? Dr. Scott Cutler, an expert who
commented on the findings, noted that one of the most interesting aspects of
this research is how age shapes the benefit of moderate-to-vigorous activity,
while also emphasizing that both aerobic exercise and resistance training
appear valuable for reducing type 2 diabetes risk and managing prediabetes.
This aligns with a broader, well-established body of
exercise physiology research. When muscles are active, they pull glucose out of
the bloodstream more efficiently, directly offsetting the glucose your liver
produces and helping manage insulin resistance, the core metabolic dysfunction
underlying type 2 diabetes. Separate research using wearable device data has
reinforced this at a more granular level, finding that participants in the top
percentile for daily steps, averaging over 13,000 steps a day, had a predicted
five-year type 2 diabetes incidence of under 1%, a striking contrast to less
active peers.
For the average adult, the research consistently points back
to the same practical target: roughly 150 minutes of moderate activity per
week, paired with muscle-strengthening activity on at least two days. That
combination remains, according to multiple studies published this year alone, a
genuinely achievable and well-supported benchmark, not an arbitrary number
pulled from an old guideline.
The Honest Limitations Worth Knowing:-
This research, despite its impressive scale, comes with an
important caveat that's easy to overlook amid the striking numbers. The study
was observational, meaning researchers tracked existing patterns in people's
activity levels and health outcomes rather than randomly assigning some
participants to exercise more than others. That design can reveal a strong,
consistent association, but it technically cannot prove that increased activity
alone directly causes the reduction in diabetes risk, since other lifestyle
factors correlated with being more active, like diet quality or sleep habits,
could be playing a supporting role.
That said, the sheer size of this dataset, combined with its
use of objective wearable-tracker data rather than self-reported activity
levels, makes it considerably more reliable than many earlier studies on this
topic. Self-reported exercise data has long been a weak point in nutrition and
fitness research, since people tend to overestimate how active they actually
are. This study sidesteps that problem almost entirely.
What This Means for Your Own Routine:-
If you're wondering how to actually apply this research to
your own life, here's a grounded way to think about it.
Aim for the 150-minute benchmark, but don't treat it as
all-or-nothing. The data shows a clear, graded relationship between
activity level and diabetes risk, meaning more movement consistently correlated
with lower risk, even below the 150-minute mark. Something is meaningfully
better than nothing, and more is generally better still.
Don't assume you're "too old" for exercise to
matter. If anything, this research suggests the opposite. Older adults and
people with prediabetes showed some of the strongest associations between
activity and reduced diabetes risk, making this a population where starting or
maintaining movement genuinely pays off.
Mix aerobic activity with strength training. Both
forms of exercise independently support better blood sugar regulation, and
combining them reflects what current research and clinical guidance
consistently recommend over focusing on just one type of movement.
If mornings aren't working, don't force it. Given the
modest association between afternoon or evening activity and slightly lower
risk, if your schedule naturally favors movement later in the day, this
research offers some reassurance that you're not missing out on the benefit.
Pair movement with diet quality where you can. The
research on ultra-processed food intake alongside physical activity suggests
these two factors may compound each other's benefits, meaning small
improvements in both areas together may add up to more than either change
alone.
The Bigger Picture:-
What makes this research valuable isn't that it reveals some
surprising new truth about exercise and diabetes. Researchers and doctors have
promoted physical activity as a prevention tool for decades. What this study
does instead is replace vague encouragement with real numbers, drawn from
nearly 88,000 people wearing actual activity trackers, not filling out a
questionnaire from memory.
That specificity matters. "Exercise more" is easy
to ignore. Knowing that roughly 150 minutes a week of moderate activity is tied
to a meaningfully lower risk, that the benefit holds strong even into your
sixties and seventies, and that both walking and strength training genuinely
count, turns a vague suggestion into something concrete enough to actually act
on.
FAQ: Exercise and Type 2 Diabetes Risk:-
How much exercise do I actually need to lower my diabetes risk ?
The study found the most active group averaged 409 minutes of
moderate-to-vigorous activity weekly, well above the World Health
Organization's recommended minimum of 150 minutes. Research consistently shows
that even meeting the 150-minute benchmark is associated with meaningfully
lower risk.
Does exercise help more for younger or older adults ?
Both groups benefit, but differently. Younger adults saw a larger relative risk increase when inactive, while older adults, due to diabetes being more common overall with age, saw the greatest absolute number of prevented cases from staying active.
Does it matter what time of day I exercise ?
The study
found a modest association between afternoon-to-midnight activity and slightly
lower diabetes risk compared to morning exercise. The effect was small, so this
shouldn't discourage morning exercisers from continuing their routine.
Is walking enough, or do I need more intense exercise ?
Research suggests both aerobic activity like walking and resistance training
contribute to lower diabetes risk. Higher daily step counts have also been
independently linked to significantly lower diabetes incidence in separate
research.
