Credits: iStock
We've all understood that exercise improves cardiovascular function, boosts the brain, and even lifts mood but the connection between physical training and gut health is now proving to be one of the most exciting areas of medical science. New research from Edith Cowan University (ECU) in Perth, Australia, indicates that the intensity of your training—rather than the frequency—can actually reconfigure your gut microbiome in tangible ways.
PhD student Bronwen Charlesson, who headed the research, was curious to know how various training loads affect athletes' gut microbes and how these changes may reflect on health and performance. "Athletes possess a distinct gut microbiota compared with the general population," she said. "This encompasses higher total short-chain fatty acid levels, increased diversity, and a distinct balance of bacterial species.
Her research stands on the shoulders of a burgeoning body of science associating the gut microbiome with virtually every element of human health, ranging from immunity and inflammation to energy metabolism. Exercise intensity is now potentially joining diet and genes as a critical player in this intricate system.
Charlesson's work demonstrated that training intensity had a direct impact on gut health markers, such as short-chain fatty acids (SCFAs)—molecule-significant compounds found when gut bacteria ferment food fiber. SCFAs are associated with decreased inflammation, better metabolic markers, and more efficient energy use and thus of interest especially for athletes.
Surprisingly, changes in the populations of some bacterial species reflected variation in training load. When doing high-intensity exercise, the gut ecosystem seemed to favor bacteria that subsist on lactate. Lactate, famously known to accompany sore muscles, doesn't only build up in the body—it's also shipped off to the gut, where certain microbes use it for energy. This gut-lactate dynamics might partially account for why athletic microbiomes differ from those of sedentary humans.
The research also pointed out a behavioral twist, when training intensity decreased, diet quality also took a hit. Athletes in lower-load or rest phases had a higher tendency to eat more fast food, processed snacks, and alcohol while reducing fresh produce.
"While overall carbohydrate and fiber consumption remained constant, the food quality overall decreased," Charlesson observed. "This was accompanied by alterations in the microbiome, including decreases in protective bacteria."
Rest periods also introduced yet another change—reduced gut transit times. Basically, food moved more slowly through the digestive system, something that can shift the microbial balance. The slowing of the gut could possibly permit some bacteria to dominate and compromise the resilience gained through increased training loads.
The results hold compelling potential for maximizing performance by managing the microbiome. Although researchers are still putting together the puzzle of exactly how the gut affects strength, endurance, and recovery, there are some theories making the rounds.
One hypothesis is that the microbiome regulates lactate metabolism and pH homeostasis, both important in explosive sports. Another is that gut bacteria are involved in nutrient uptake and energy supply, and thus diet-microbiome-exercise interaction is a three-way puzzle athletes cannot leave unsolved.
But the effects reach farther than high-end athletes. For anyone who exercises—whether you're a CrossFit enthusiast or a weekend jogger—your gut might be adjusting to how you exercise. High-intensity exercise, paired with balanced eating, may help maintain a healthier, more diverse microbiome. On the other hand, skimping on eating during recovery time could eliminate some of the benefits.
The research comes at a time when gut health is a global hot button. Digestive disorder, autoimmune, and metabolic disease rates are on the rise, and numerous researchers are looking to the microbiome as a unifying strand. Discovering how habits such as exercise intensity affect gut bacteria might be the key to new prevention and treatment avenues.
Gut health is not all about steering clear of stomach issues," Charlesson said. "It might also have a role in mental wellbeing, the immune system, and even our reaction to training. That makes it an important area to concentrate on not just for athletes but for anyone who wants to see general well-being."
What this study actually implies is that the gut is not a passive commuter—it's an active partner in the way the body interacts with physical stress. Just as athletes dial in training phases, sleep, and water intake, the gut might have a place in the performance playbook.
Future studies might consider whether the personalization of diets based on training intensity augments both microbial diversity and athletic performance. Might probiotic or prebiotic supplementation be periodized similarly to workout routines? Might gut transit times be a signifier of recovery requirements? These are only just beginning to be queried.
Though the research was conducted on athletes, its messages have far-reaching applications. All exercisers might want to pay closer attention to how their rest days influence not just their calorie load, but also their gut flora. It's a wake-up call that health isn't an isolated thing—exercise, nutrition, and recovery are highly interdependent.
High-intensity exercise seems to make the microbiome richer in a way that might augment resilience, energy metabolism, and recovery. Consequently, a healthier gut might enable athletes—and normal exercisers—to handle higher training loads with less fatigue.
This cycle can partially account for why some people appear to thrive on strenuous regimens and others battle with chronic burnout. If subsequent studies validate this bidirectional relationship, microbiome analysis would become as ubiquitous as VO2 max or lactate threshold testing in the training room.
Credits: iStock, PEOPLE
A New York City teacher Pedro Soto, 56, who teachers at the Manhattan school had a simple sore throat and he believed it was from a viral infection, but it soon turned out to be type 2 diabetes.
This was in April 2024, when he went to his doctor with the complaint of a sore throat and took a blood test. This is when he was "officially diagnosed with type 2 diabetes".
In an interview with PEOPLE, he tells while the doctor recommended medications for him, he was determined to make a lifestyle change first. "After receiving the news, I chose not to start medication right away. Instead, I committed to exercising, running twice a week and improving my diet."
Turns out, running, changed his life.
Pedro Soto first considered running the TCS NYC Marathon after a colleague mentioned that her husband had completed it. Motivated, he applied through a special program for teachers, sharing an essay about his type 2 diabetes diagnosis. His story earned him a spot on the team. As he trained, he closely monitored his health, undergoing regular blood tests every three months. The improvement surprised him. His blood sugar levels, once concerning, gradually returned to the normal range. While type 2 diabetes cannot be fully cured, it can be reversed, and Soto was seeing that transformation firsthand.
The marathon was scheduled for November 2, 2025. Soto’s training, however, didn’t begin smoothly. In June, he learned he had Lyme disease. Around the same time, he lost his father. Because of these back-to-back challenges, he wasn't able to train consistently until August. Running soon became more than exercise. It became a way to navigate grief and rebuild strength.
He describes those months as emotionally heavy. Running offered him space to reflect, heal, and feel close to his father. It became a ritual that allowed him to confront his feelings rather than avoid them.
To prepare mentally, Soto dove into YouTube videos and articles about the marathon. Still, nothing compared to the real thing. To him, race day felt like a citywide block party. The cheering crowds, music, and energy made the pain more bearable. He said that although the long hours of pounding take a toll on joints and muscles, the city's encouragement kept pushing him forward.
The toughest stretch came in the final six miles, when self-doubt crept in. What kept him going was thinking about his students. Soto works with teenagers in a transfer program, many of whom have struggled in traditional school systems. Their perseverance inspired him. If his students could show up every day despite their challenges, he believed he could finish the race.
He says he is taking care of his health and this itself is an act of commitment to his students. Whenever he feels healthier, he shows up as a strong educator and for him the marathon teaches him the importance one needs in life of balance, self-care, and knowing when to put themselves first.
Credits: Canva
"I'm excited for this next chapter in my life, I'm the happiest I've ever been, and for since I could remember I was sad," said Post Malone as he talked about his journey of losing 55 pounds. He went from 240 lbs to 185 lbs, he revealed at The Joe Rogan Experience Podcast. His inspiration? His daughter. He said that he is focused more on his health since becoming a father.
"It is definitely made me take better care of myself. I want to be around to see her go and do kick-*ss stuff. And before, you know, I was really drinking a lot and smoking a lot and stuff. I kind of took everything and toned it down a little bit and, you know, doing my best and really got my weight going," he said.
His weight loss journey started after he welcomed his daughter in May 2022, and on April 20233, he shared on his Instagram that post becoming a father he is now prioritizing his health.
He said it is simple, he decided to "kick soda and start eating better". He also is trying to cut down his smokes and brews or give up completely, which is taking time.
On his Instagram post, he wrote: "I've had a lot of people ask me about my weight loss and I'd suppose, performance on stage. I'm having a lot of fun performing, and have never felt healthier. I guess dad life kicked in and I decided to kick soda and start eating better so I can be around for a long time for this little angel. Next up is smokes and brews, but I like to consider myself a patient man... lol!"
While his fans were initially concerned about his weight loss, he reassured them that his "brain is in a super dope place" and he was "the happiest" he has ever been in a long time.
When he made his appearance in June 2024, on The Joe Rogan Experience Podcast, he said that his fans in fact, thought, that he started using drugs, due to his drastic weight loss. This is why he posted on Instagram to deny those allegations. “I remember, whenever I started losing my weight, everybody was like, ‘Hey, this is what meth looks like,’ and I started dancing on stage and having fun and having more energy and just enjoying life again, you know what I mean,” he told host Joe Rogan. “Like I mentioned, I was s***** for a long time, but I had my baby and I’m in a great f****** spot and then the first thing that happens is like, ‘Oh he’s on f****** drugs.’"
However, Malone has confirmed that he is not "any hard drugs".
In an appearance on The Howard Stern Show in October 2023, Malone said that he has not been on weight loss medication, rather he is now making better food choices.
Earlier, whenever he was on tour, he would go for junk, but now, he has made a deliberate choice to eat "grilled chicken" "carrots" with a "little bit of white rice with hot sauce". He said he was blown away to find out that hot sauce has no calories.
He also shared that he has cut out fried food and pizza. He shared that he would previously eat a lot of junk while on tour, especially because those places were open at 2 am after a show. However, when he made those small dietary changes, he lost 20 pounds, which made him think "let's keep building".
He also shared that he started cutting down on his soda intake. However, he would occasionally reward himself with one after a show.
He also showed off his weight loss in an August 2023 Instagram post on a mirror selfie and wrote: "Introducing Viceroy Chungus VonBattlepass, i love you," in caption.
Credits: Canva
For years, the idea of walking 10,000 steps a day has been treated like universal fitness wisdom, however, a recent study reveals that even a short stroll too could help you stay healthy.
From fitness trackers to morning-walk groups, the number has been repeated so often that many people believe it is a scientifically proven rule. The truth is far simpler and far more encouraging. New research shows that you do not need anywhere near 10,000 steps to improve your health. In fact, even a small amount of regular movement can dramatically lower your risk of heart disease and early death.
A new study published in the British Journal of Sports Medicine examined how step counts influence longevity and heart health, particularly in older adults. The findings were surprisingly optimistic. Scientists discovered that walking as few as 4,000 steps in a day, even if you manage this number only one or two days a week, can reduce the risk of death by 26 percent. It can also lower the risk of heart disease by 27 percent when compared to those who barely moved.
The benefits became even more striking when participants achieved the 4,000 step target on more than three days per week. In that group, mortality dropped by more than 40 percent and the risk of heart issues fell by 27 percent. These numbers show that moderate, regular walking has powerful protective effects on long-term health.
The study also explored whether aiming for higher step counts brings additional benefits. Researchers found that walking around 7,000 steps a day provides a slight extra advantage when it comes to living longer. However, it does not significantly change cardiovascular outcomes. This means that hitting 4,000 steps is already enough for meaningful protection, especially for older adults or people who are unable to reach higher counts.
Interestingly, the study also revealed that the number of days you walk matters far less than the total steps collected throughout the day. When scientists adjusted for total daily steps, the link between how many days people walked and their health results disappeared. The real takeaway is this: what matters most is how much you move overall, not whether you meet a daily or weekly quota.
Walking is one of the simplest forms of movement, yet its benefits are remarkably wide-ranging. It is gentle, low impact and accessible to almost everyone. Regular brisk walking has been shown to improve heart health, support weight management, boost mental well-being and improve mobility. These improvements occur because consistency helps the body adapt, even when the total effort seems small.
For older adults, or for anyone returning to activity after a long pause, this consistency is especially important. Small, steady efforts accumulate and gradually build up stamina. Over time, this reduces the risk of chronic disease and enhances overall fitness without stressing the joints.
If you want to enjoy the health benefits of walking, the key is to stay consistent rather than chase big numbers. A few practical tips can help you build a routine that feels realistic and enjoyable.
If you have been inactive for a while, begin with five to ten minutes of walking at a comfortable pace. Gradually increase your duration and distance over several weeks. This prevents strain and reduces the risk of giving up too soon.
Aim for manageable targets such as walking 20 to 40 minutes three days a week. Once this feels comfortable, you can add more time or increase your frequency if you wish.
If you are traveling or have long work hours, try breaking your walks into shorter chunks. A few five to ten minute walks throughout the day can help you stay on track.
When outdoor conditions are not ideal, choose indoor spaces such as malls, gyms, community centers or even long corridors at home or work.
Different routes help fight monotony and make walking more enjoyable. Rotate between parks, neighborhoods or indoor spaces to keep things fresh.
© 2024 Bennett, Coleman & Company Limited