Fitness
Moderate, vigorous exercise boosts cognitive abilities for 24 hours
- Regular exercise is good for brain health.
- Past studies show the ‘boost’ the brain receives from physical activity normally peaks within the first 10 to 20 minutes.
- Researchers from University College London have now found that the exercise-caused improvement to cognitive performance may actually last for 24 hours.
- Scientists also linked sitting less and getting 6 or more hours of sleep to better memory test scores the next day.
Previous research shows that the “boost” the brain receives from exercise typically peaks within the first 10 to 20 minutes.
Now, researchers from University College London, in the United Kingdom, have found that the exercise-related improvement to cognitive performance may actually last for 24 hours.
Scientists also linked sitting less and getting 6 or more hours of sleep — especially additional REM sleep and deep sleep — to better memory test scores the next day.
For this study, researchers recruited 76 adults between the ages of 50 and 83 that had no diagnosis of dementia or cognitive impairment.
Each participant wore a wrist accelerometer for 8 days to track their physical and sedentary behavior, as well as their sleep patterns.
“Because our cognitive function declines as we age, and having good cognitive function is important for quality of life and independence, we want to continue to understand optimal ways to modify our lifestyle to maintain good cognitive function for as long as possible,” Mikaela Bloomberg, PhD, senior research fellow in the Department of Epidemiology and Public Health at University College London, and lead author of this study told Medical News Today.
“We know from laboratory-based studies that we get a cognitive boost in the minutes to hours following a bout of exercise,” Bloomberg continued. “We wanted to see whether this benefit might last longer than a couple hours, particularly in a group of older adults where maintenance of cognitive function is particularly important, and outside a laboratory setting.”
Upon analysis, Bloomberg and her team found that more moderate or vigorous exercise — compared to a person’s average — was correlated to an improved working memory (the ability to retain information while doing something else) and episodic memory (recalling everyday events) the next day.
Conversely, researchers discovered that being more sedentary led to decreased working memory the next day.
“Exercise stimulates blood flow and neurotransmitters that contribute to cognitive function,” Bloomberg explained. “[These findings mean] that the memory benefits of physical activity might last longer than previously established from laboratory-based studies.”
The researchers also found that study participants receiving 6 or more hours of sleep had better episodic memory and psychomotor speed compared to those who slept less.
They further found that every 30 additional minutes of REM sleep the previous night was associated with an increase in participants’ attention scores.
Moreover, each 30-minute increase in slow-wave sleep — also called deep sleep — was correlated to improved episodic memory score.
“Sleep and physical activity are intrinsically linked behaviors; we can’t consider physical activity without taking sleep into account which is why we also considered sleep,” Bloomberg said. “This finding reiterates what is already known about sleep and next-day memory function.”
“It will be interesting as a next step to undertake similar research in a group of adults that is less cognitively healthy than the group we studied, to see whether we see different results,” she added.
“Among older adults, maintaining cognitive function is important for good quality of life, well-being, and independence,” Andrew Steptoe, PhD, professor of psychology and epidemiology and head of the Research Department of Behavioral Science and Health at University College London and co-author of this study said in a press release. “It’s therefore helpful to identify factors that can affect cognitive health on a day-to-day basis.”
“This study provides evidence that the immediate cognitive benefits of exercise may last longer than we thought,” Steptoe continued.
“It also suggests good sleep quality separately contributes to cognitive performance. However, we can’t establish from this study whether these short-term boosts to cognitive performance contribute to longer term cognitive health and though there is plenty of evidence to suggest physical activity might slow cognitive decline and reduce dementia risk, it’s still a matter of some debate,” he cautioned.
MNT also spoke with Ryan Glatt, CPT, NBC-HWC, senior brain health coach and director of the FitBrain Program at Pacific Neuroscience Institute at Providence Saint John’s Health Center in Santa Monica, CA, about this study.
“While intriguing, the study is small and limited in its generalizability,” Glatt, who was not involved in the research, told us. “The connection between physical activity, sleep, and next-day cognitive benefits warrants further exploration with a larger and more diverse sample.”
“Exercise and sleep are both modifiable lifestyle factors, which means their optimization could have significant implications for cognitive aging and public health interventions. However, more robust evidence is needed to establish these effects over longer periods. Future research should include larger sample sizes, diverse populations — including those with cognitive impairments — and longer follow-up periods to determine if short-term cognitive benefits translate into sustained improvements or reduced cognitive decline.”
– Ryan Glatt, CPT, NBC-HWC
Finally, MNT spoke withVernon Williams, MD, a sports neurologist, and the founding director of the Center for Sports Neurology and Pain Medicine at Cedars-Sinai Kerlan-Jobe Institute in Los Angeles, about this study.
Williams, who was not involved in the research, commented that the findings add to the data that seem to support mounting evidence of the benefits of activity and exercise to the brain.
“The fact that the study suggests longer duration — not just hours, but evidence of improvement into the following day — is […] noteworthy,” he told us.
“It seems very clear that the more we look and the more it’s formally studied, the more we find evidence that optimizing sleep and physical activity /exercise are beneficial — not just for physical health, but for cognitive health and function as well. Anything we can do to improve the brain’s functions — including how we think, act, and behave — key aspects of who we are and how we interact with our loved ones and the world in general — is important.”
– Vernon Williams, MD
Like Glatt, however, Williams also said he would “like to see this kind of study replicated and findings confirmed in larger numbers or participants.”
He added: “I’d like to see how we can educate and inform the public (and physicians) in ways that change behavior — and result in the benefits suggested by the study. There are a host of questions and opportunities for research that can benefit individuals and society as a whole around the concept of the effects of sleep and exercise on cognition. It’s exciting!”
Fitness
Is Exercise Overrated For Arthritis Pain? Latest Study Challenges Long-Held Beliefs
Last Updated:
Exercise for arthritis pain may be “minimal and short-lived,” claims a new umbrella study, but rheumatologists say the full story changes everything.
A new 2026 review suggests exercise may offer only modest relief for osteoarthritis, but experts say consistency and the right approach can still make a difference. (Image-iStock)
Exercise has long been considered essential for osteoarthritis care. Recently, a new umbrella study suggests that its pain-relief may be short-lived. However, experts argue that consistency and strategy may matter far more than the numbers alone indicate.
When it comes to osteoarthritis care, exercise has been positioned as the first-line recommendation. Doctors not only prescribe it, but clinical guidelines reinforce it as well.
Patients have been encouraged to exercise and move more to preserve mobility, but a February 2026 study published in RMD Open has prompted fresh debate, suggesting exercise may offer only small, temporary improvements in pain and function.
Dr Sandeep Nagar, Consultant – Rheumatology at Yatharth Super Speciality Hospitals, Omega-1, Greater Noida, stresses that the numbers need context. “Expectations should be reframed rather than lowered,” he explains.
“Modern pain management prioritises functional capacity over achieving a ‘zero pain’ score. A 7-15 point reduction on a 100-point scale is considered a clinical success because it often enables patients to do significantly more despite some remaining pain.”
What Is Osteoarthritis, And Why Exercise Matters
Osteoarthritis is one of the most common degenerative joint diseases globally. It involves cartilage breakdown, leading to pain, stiffness, swelling, and limited range of motion. Knees, hips, and hands are most frequently affected, though any joint can be involved.
Since the condition is progressive and incurable, treatment focuses on symptom control and preserving function. Exercise has traditionally been central to that strategy. It enhances circulation, improves joint alignment, strengthens surrounding muscles, and reduces stiffness.
Over time, it can also help patients maintain independence and delay invasive interventions. Yet, the new ‘umbrella review’ raises an important question: Are those benefits as substantial as long believed?
What The Study Says
The February 2026 study, titled “Effectiveness of exercise to ease osteoarthritis symptoms likely minimal and transient,” conducted what researchers describe as an umbrella systematic review, an overarching analysis of existing systematic reviews and randomised clinical trials.
Researchers searched medical databases for relevant studies published up to November 2025. They included:
- Five systematic reviews involving 8631 participants
- Twenty-eight randomised clinical trials involving 4360 participants
In total, nearly 13000 patients were represented. The analysis examined exercise in hip, hand, knee, and ankle osteoarthritis.
It compared exercise against multiple alternatives, including no treatment, placebo, patient education, manual therapy, NSAIDs, corticosteroid injections, hyaluronic acid injections, arthroscopy, osteotomy, and joint replacement. The experiment aimed to determine whether exercise truly stands out as a first-line intervention.
What The Study Found
Compared with placebo or no treatment, exercise reduced pain by between 6 and 12 points on a 100-point scale. For knee osteoarthritis, effects were small and short-lived, with very low certainty of evidence. Larger and longer-term trials showed even smaller benefits.
For hip osteoarthritis, effects were negligible. For hand osteoarthritis, they were small. Exercise did not significantly outperform patient education, NSAIDs, steroid injections, or arthroscopy in improving function. In certain trials, surgical options such as osteotomy and total joint replacement delivered stronger long-term outcomes.
The researchers concluded:
“We found largely inconclusive evidence on exercise for osteoarthritis, suggesting negligible or, at best, short-lasting small effects on pain and function across different types of osteoarthritis compared with placebo or no treatment.”
They added that the findings “question the universal promotion of exercise therapy as the sole focus in first-line treatment.”
How Should Patients Interpret A 6-12 Point Drop?
To many readers, a 6-12 point reduction may sound unimpressive. But Dr Nagar emphasises that clinical impact is not solely about numerical magnitude. “Goals should shift from complete pain relief to improved quality of life and movement,” he says.
“Even modest reductions can increase walking tolerance, improve sleep, and reduce fear of movement. Exercise also raises pain thresholds biologically by activating the body’s endogenous opioid systems.”
Medication Vs Movement: Risk And Cost
One of the review’s notable findings was that exercise alone reduces pain at levels comparable to NSAIDs and corticosteroid injections. Dr Nagar argues this comparison strengthens, rather than weakens, the case for exercise. “Relying on medication over several years carries higher systemic risks and rising long-term costs,” he explains.
“NSAIDs are associated with renal and gastric complications and cardiovascular events. Opioids can lead to dependency and increased pain sensitivity. Exercise, when supervised and individualised, has a superior safety profile.”
He adds that long-term medication costs often escalate. “Chronic opioid users frequently incur nearly double the annual healthcare costs. Structured exercise can potentially save hundreds per year in medication expenses and thousands over a lifetime by reducing the likelihood of surgery.”
However, he cautions that exercise is dose-dependent. “Unlike pills, its benefits require consistent participation.”
Limitations Of The Study
Several limitations may have diluted the exercises’ apparent effectiveness.
All Exercises Were Grouped Together
Strength training, aerobic workouts, stretching, aquatic exercise, and tai chi were analysed collectively. These interventions differ substantially in intensity and physiological impact.
Evidence suggests aerobic and resistance training often outperform stretching alone. By averaging all modalities, stronger effects may have been obscured.
Supervised Vs Unsupervised Was Not Distinguished
Supervised programs generally yield better outcomes than unsupervised routines. Professional oversight improves adherence, progression, and technique. Dr Nagar notes, “The best outcomes occur with tailored, supervised exercise combined with pain education. Active movement consistently outperforms inactivity.”
Short Study Durations
In the umbrella review, many trials lasted approximately 12 weeks. As osteoarthritis is lifelong, long-term adherence could produce cumulative benefits not captured in short trials.
Exercise Dose And Intensity
Research suggests optimal benefits occur at around 150 minutes of moderate intensity exercise weekly. If participants exercised below that threshold, the measured effect may reflect insufficient dosing rather than efficiency. In the study, the dose of exercise was not fully accounted for.
When Does Surgery Become More Effective?
The review also found that exercise is less effective than joint replacement in certain groups, but surgery is not an early solution. Dr Nagar explains that total joint arthroplasty is recommended for symptomatic moderate-to-severe osteoarthritis (stage 3 or 4) that does not respond to comprehensive nonoperative care.
“Persistent pain, significant functional limitation, and clear radiographic joint damage despite exhaustive conservative management justify surgical intervention,” he says. “Exercise remains essential before and after surgery to optimise outcomes.”
Why Exercise Still Matters Beyond Pain
The study focused on pain and function, but exercise delivers systemic benefits that extend far beyond the joint:
- Weight management
- Improved mood
- Cardiovascular protection
- Better sleep
- Reduced diabetes risk
- Lower cancer risk
“These secondary health benefits must be weighed in shared decision-making,” the review authors themselves noted. Exercise may not eliminate osteoarthritis pain entirely, but it strengthens overall resilience.
Should Exercise Remain First-Line Recommendation?
Dr Nagar believes that exercise should remain the first-line recommendation. “Yes,” he says. “Exercise delivers long-term functional and structural benefits that medication cannot. Corticosteroid injections may provide rapid relief, but effects often diminish within six months. Exercise builds strength, improves joint mechanics, and supports cartilage health.”
Unlike medication that masks symptoms, targeted movement addresses biomechanical dysfunction. Repeated injections, he notes, may even contribute to tissue degradation over time.
How To Protect The Joints?
For those concerned about aggravating pain, structured warm-up and cool-down routines are essential. Dr Nagar recommends:
Warm-up (5-10 minutes):
- Light cycling or brisk walking
- Dynamic movements like leg swings, arm circles, or walking lunges
Cool-down (5-10 minutes):
- Gradual slowing to normalise heart rate
- Static stretches, such as hamstring or quadriceps stretches, are held for 10-30 seconds
The February 2026 umbrella review in RMD Open suggests that exercise appears to produce modest, sometimes transient reductions in osteoarthritis pain when analysed broadly.
As Dr Nagar emphasises, “The goal is not zero pain; it is better living.” Exercise may not be a miracle cure or eliminate pain entirely, but when tailored, supervised, and sustained, it remains one of the safest and most empowering tools available to people living with osteoarthritis.
February 24, 2026, 08:00 IST
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Fitness
If exercise can make you feel good, why do so many people hate doing it?
Denver — The evidence is clear: Exercise has mental health benefits, although studies have come to different conclusions about how large it might be.
And yet, when February rolls around again, the gyms suddenly aren’t so crowded as New Year’s resolutions lose their shine. Nationwide, only about 30% of people meet the federal guidelines for physical activity, and even in famously outdoorsy Colorado, just 35% do.
So if exercise gets the endorphins flowing and gives a quick mood boost, why do many people find it hard to stick with?
The popular perception that exercise produces endorphins, which then raise mood, isn’t wrong, but it oversimplifies complex interactions between brain chemistry and mental states, said Katrina Oselinsky, a post-doctoral researcher at the Health and Wellness Center on the University of Colorado’s Anschutz Medical Campus.
The same person could experience the same workout differently from day to day, depending on how they’re feeling, what else is happening in their lives and the setting where they exercise, she said.
“While endorphins are part of the picture, there’s a lot more going on,” Oselinsky said. “The same workout can feel energizing for one person and uncomfortable for another.”
While a subset of people get an immediate “runner’s high” in response to intense exercise, not everybody has the same experience, which can set others up for disappointment, said Emily Hemendinger, an assistant professor of psychiatry at CU Anschutz.
Brains differ in how sensitive they are to rewards, so some people are primed to get more or less enjoyment out of exercise – though, obviously, factors such as past experiences with exercise matter, she said.
Exercise does trigger a release of chemicals that give most people at least some sense of pleasure, but it doesn’t generate a tsunami that could drown out a person’s lack of comfort in their body, fear that others are judging them, perfectionism, boredom, physical pain or exhaustion, Hemendinger said.
“It’s not like doing drugs, and what that lights up in our brain right away,” she said.
For most of human history, exercise didn’t exist as a separate activity: We moved because we needed to find food or because we were doing something inherently rewarding, such as dancing, said Marcelo Bigliassi, an assistant professor at Florida International University.
Now, people need to find a motivation for exercise, which isn’t always readily apparent, he said.
“We don’t do anything without a reason,” Bigliassi said.
While the brain releases dopamine, triggering the desire to repeat exercise, it can also get “really creative” in coming up with ways to avoid something uncomfortable, Bigliassi said. To get around that, people need to focus on finding something challenging enough to give them a sense of accomplishment, but not so tough that they give up, he said.
“We don’t want people to find something they don’t like, exercise at high intensity, probably injure themselves and… feel like a failure,” he said.
The data is clear that, over time, exercise improves both mental health and cognitive abilities such as problem-solving, Bigliassi said. But many people give up long before they see those benefits because they set themselves up to fail or aren’t prepared for bumps along the way, he said.
“Consistency is much more important than everything else,” he said.
People who believe they’ll be able to accomplish what they’re trying to do report more enjoyment from a workout than those who feel defeated at the start, Oselinsky said. Having support from the people around you also improves the experience, and new exercisers tend to develop more positive feelings as they get better at the activity, she said.
Of course, we humans aren’t always great at sticking to something we don’t like, even if we know it brings benefits. So a non-exerciser’s best bet is to choose an activity they like or to bundle exercise with something else they enjoy, such as getting outside, spending time with a friend or pet, or listening to music or podcasts, Oselinsky said.
“If you’re trying to force yourself to stick with something you don’t like, it’s going to be harder,” she said.
People often feel that they have to go to a gym, but movement throughout the day can be as good as a dedicated exercise session, Oselinsky said. That could look like doing physical labor at work, schlepping toddlers whose motivation to walk is shaky, or tending a backyard garden come spring.
Federal guidelines recommend 150 minutes of moderate activity or 75 minutes of vigorous activity each week, with some sort of muscle-strengthening exercise on two days.
But any movement that someone enjoys is a step in the right direction, whether that means jumping on a trampoline or playing with their dog, Hemendinger said.
“Joyful movement’s hard to find, but it’s important,” she said.
Fitness
Is there an ideal workout split for lifting?
How to exercise at home for beginners
You don’t need a gym to exercise. Here’s how to work out at home.
ProblemSolved, USA TODAY
If you’re venturing into the world of lifting, there are more than a few ways to go about curating a workout split that supports your fitness goals.
Whether you’re interested in Olympic lifting or powerlifting, the activity offers immense benefits for developing muscle, improving mobility, boosting energy levels and relieving stress.
For the unfamiliar, a workout split simply refers to how you curate your exercise routine and how to divide which exercises you’ll complete over a week’s worth of time, says Dr. Robert Trasolini, an orthopedic surgeon and sports medicine specialist at Northwell Health.
Is there one split for lifting that prevails above the rest? Here’s what fitness experts say.
Is there an ideal workout split for lifting?
“No, there really isn’t a perfect split,” says Alex Milton, a certified strength and conditioning specialist and the director of sports performance at MedStar Health. How you vary your upper and lower body workouts over the course of a week will ultimately depend on how much time you can dedicate to going to the gym.
If you’re able to commit four to five days at the gym, one gym session could be dedicated to an upper body workout that concentrates on building strength in your chest, shoulders or arms, and the following session could focus on the lower body to work your legs, lower back and posterior chain.
If you’re heading to the gym closer to two to three times a week, it may be more beneficial to complete full-body lifts to stay more consistent with your workouts, Milton recommends.
The push-pull-legs split is one type of lifting framework that prioritizes strength building and muscle development, says Trasolini. “Push” exercises primarily work your body’s anterior front structure, and could look like a mix of chest, shoulder and tricep workouts. “Pull” exercises consist of pulling weights toward your body, such as back or bicep workouts. The third and final portion of the split centers around leg workouts, which could include squats or dead lifts.
Incorporating recovery into your split is essential, says Dr. Trasolini. From a physiological standpoint, exercising works to break down the muscle with the intention of rebuilding it. “You need that recovery time for your body to see the damage, reassess and then repair,” he says.
How to lift weights
If you’re not yet an experienced weightlifter, prioritize the quality of your reps over quantity, the experts say. “There’s a big fear factor with weightlifting,” says Milton. “A lot of people think they’re gonna get hurt when they (lift), so naturally, they want to do higher reps because the weights (are) lighter and they feel a little bit more comfortable.”
Higher reps put a bit more emphasis on cardio conditioning and endurance, whereas starting with a lower range of reps (around four to eight) will have a greater demand on your muscles and central nervous system as you gradually increase the load and intensity, Milton explains.
If you’re a beginner to lifting, Trasolini recommends working with a fitness professional, such as a certified personal trainer or sports medicine specialist, to prioritize correct form and reduce your risk of injury while lifting.
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