The global obesity epidemic, affecting over one billion people worldwide, is largely driven by eating behaviors. Appetite, influenced by both intrinsic and environmental factors, plays a crucial role in weight management. A recent study how exercise affects appetite perception in obese males, shedding light on the physiological mechanisms behind hunger suppression post-exercise.
While exercise is well-known for its benefits in weight management, its direct impact on appetite control has remained a subject of debate. Appetite is regulated by a complex network of gastrointestinal and neurohormonal signals, including hormones like ghrelin, leptin, interleukin 6 (IL-6), and neuropeptide Y (NPY). These hormones influence hunger levels, satiety, and energy balance.
The study published in Physiological Reports examines investigated how moderate continuous aerobic exercise (MICE) alters these hormone levels in obese men, ultimately affecting their hunger perception. The findings reveal that certain myokines and cytokines shift dynamically post-exercise, potentially reducing appetite and offering a promising strategy for weight management.
The study found that after exercise, there was a significant increase in IL-6 and irisin levels in the exercise group compared to those who remained sedentary. These elevated concentrations persisted for an hour after working out. IL-6 has been associated with regulating metabolism and enhancing fat oxidation, while irisin plays a role in converting white fat into more metabolically active brown fat.
Conversely, the study reported a decrease in neuropeptide Y (NPY) levels, a key neurotransmitter responsible for stimulating appetite. The decline in NPY levels post-exercise suggests a temporary suppression of hunger, supporting the idea that exercise can curb cravings. However, the study did not observe significant changes in IL-7 or leptin levels, two other hormones involved in appetite regulation.
Ghrelin, often called the “hunger hormone,” stimulates appetite by increasing activity in specific areas of the brain. Individuals with higher ghrelin levels generally find it harder to lose weight because their bodies signal hunger more frequently.
Research suggests that dieting can lead to an increase in ghrelin levels, making weight loss challenging. Certain medical conditions, such as Hashimoto’s thyroiditis, Prader-Willi syndrome, anorexia nervosa, and bulimia nervosa, are also linked to elevated ghrelin levels, complicating appetite regulation further.
While exercise has clear benefits, the findings should be interpreted with caution. He pointed out that the study had a small sample size, making it difficult to draw definitive conclusions.
Moreover, he highlighted the challenges faced by obese individuals in maintaining an intensive exercise routine. While exercise-induced appetite suppression is promising, consistently engaging in high-intensity workouts may be unrealistic for those who struggle with mobility or fitness levels. More extensive studies are needed to determine the optimal exercise duration and intensity for effective appetite suppression.
Besides exercise, there are several strategies individuals can use to naturally suppress their appetite and improve satiety:
Increase Protein Intake: Protein-rich foods, such as lean meats, legumes, and dairy, promote feelings of fullness and reduce hunger.
Stay Hydrated: Drinking water before meals can help control portion sizes and prevent overeating.
Opt for Fiber-Rich Foods: Whole grains, vegetables, and fruits high in fiber take longer to digest, keeping you full for longer.
Reduce Simple Carbohydrates and Sugars: Simple carbs and sugars cause rapid spikes and crashes in blood sugar levels, leading to increased hunger.
Prioritize Sleep: Poor sleep disrupts hunger-regulating hormones, making it harder to control cravings.
Manage Stress: Chronic stress increases cortisol levels, which can lead to overeating and weight gain.
The study’s findings indicate that moderate exercise can temporarily suppress appetite by altering key hormones. While more research is needed to refine the details—such as optimal workout duration and intensity—this insight adds to the growing body of evidence supporting exercise as a tool for appetite regulation and weight management.
For individuals looking to curb cravings and maintain a healthy weight, incorporating a well-balanced diet alongside regular exercise remains the most sustainable approach. Future studies focusing on larger populations and long-term effects could provide deeper insights into how exercise can be optimized for appetite control, making it an effective strategy in combating obesity.
Exercise alone is not a magic solution for weight loss, but its impact on appetite hormones presents a promising avenue for managing hunger and energy balance. As research continues to evolve, it becomes increasingly clear that integrating physical activity with mindful eating habits can play a vital role in achieving and maintaining a healthy lifestyle.
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For many working professionals, going to the gym often feels like a luxury. Their days begin early and end late—rushing for buses and metros, juggling deadlines, presentations, meetings, and endless reports.
So when they are diagnosed with conditions like diabetes or high blood pressure, the most practical and affordable option left is walking. Another common step is cutting down on sugar in tea and coffee. While these are good starting points, these may not be enough.
Calling them "most frustrating", Dr. Sudhir Kumar, Neurologist at Apollo Hospital, Hyderabad noted that such "patients are losing a battle they think they are winning".
"Every day, I see patients with obesity, Type 2 Diabetes, or hypertension who tell me: 'I walk every morning, Doctor'. 'I do all the household work.' 'I have stopped adding sugar to my tea'," said Dr Kumar, in a post on social media platform X.
He also cited these as "dangerous health misconceptions", wherein the patients feel they have done their part, but "their blood work and body composition tell a different story".
Popularly known as the Hyderabad doctor on X, the noted neurologist shared some evidence-based reality of why "walking and quitting sugar" may not be enough.
Several studies have pointed out that walking or undertaking household chores is better than a sedentary behavior. However, neither can be a "substitute for strength training", Dr. Kumar said.
Although walking can burn a few calories, "strength training builds the 'engine' that burns glucose even while you sleep".
"If you are not lifting weights or doing resistance training at least twice a week, your insulin resistance will likely persist, regardless of your step count", he said.
Speaking to HealthandMe, Dr. Manisha Arora, Director - Internal Medicine at the CK Birla Hospital, Delhi, explained that cutting sugar and walking are good first steps, but they do not solve the problem of diabetes and high blood pressure.
"Insulin resistance, inflammation, and loss of muscle all contribute to these diseases. Light walking may help, but the intensity and duration of exercise are also important," he added.
Strength training exercises force muscles to contract against an external force, such as body weight, dumbbells, or bands. Common examples include
Strength training helps
Dr. Kumar further mentioned the diet trap that most people fall into, that is., cutting out sweets and sugar, while loading up the plate with carbohydrate-rich foods such as rice, roti, and poha — 80 percent — and zero protein content.
"Refined carbohydrates (even without added sugar) spike insulin similarly to sugar," he said, calling "no sugar as the bare minimum".
The doctor noted that "a protein-deficient diet can lead to muscle loss and increase hunger".
To lower blood sugar levels, the experts urged to cut down on other foods, such as
"Focus on protein leverage. Prioritize 1.2g to 1.5g of protein per kg of body weight. When you hit your protein goals, your craving for carbs naturally drops," Dr. Kumar said.
To see the real change in blood sugar and BP levels, he advised people to "add two days of resistance training (bodyweight, bands, or weights)", instead of "just walking",.
The neurologist also recommended "starting the meal with protein paneer, eggs, sprouts, lean meat, and to eat carbs last, and in smaller portions".
In addition, a diet high in protein and fiber from whole grains, fruits, and nuts can also help control blood sugar levels.
"The most successful approach to controlling blood sugar results from combining aerobic exercise with strength training, along with balanced nutrition," said Dr Arora.
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We often assume that having a “normal weight” automatically means being healthy. While body weight is an important parameter, it represents only a small part of overall health. True health is far more complex than what a number on the weighing scale can convey.
Body Mass Index (BMI) is widely used to classify individuals based on their weight relative to height. However, it does not differentiate between fat and muscle. As a result, someone may fall within the normal BMI range yet still have high body fat and low muscle mass, a condition known as “normal weight obesity.” Such individuals may appear healthy but remain at risk for metabolic disorders.
Body composition analysis offers deeper insight by evaluating fat, muscle mass, and their distribution in the body. A combination of low muscle mass and excess body fat, especially around internal organs, can increase disease risk, even when overall weight appears normal.
The role of fat distribution:
All body fat is not the same. Where fat is stored matters significantly. The waist-to-height ratio is now considered a more reliable indicator than BMI, as it reflects fat distribution. A ratio above 0.5 is associated with a higher risk of conditions such as type 2 diabetes, cardiovascular diseases, and even increased mortality.
Looking beyond numbers:
Health cannot be defined by numbers alone. Factors like physical activity, nutrition, stress levels, and sleep quality play an equally critical role. Even individuals with a normal weight can experience poor metabolic health due to inadequate sleep or chronic stress.
The bigger perspective:
Good health is not just about appearance or weight, it is the result of multiple factors working together. It reflects a balance between internal processes and external lifestyle choices.
In essence, being of normal weight does not necessarily mean being healthy. To truly stay well, it is important to look beyond weight and consider the broader picture of health.
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Los Angeles Lakers star Luka Doncic is set to fly to Europe to seek specialized treatment on his Grade 2 left hamstring strain, according to a media report.
Doncic suffered the injury during Thursday's 134-96 loss to the Oklahoma City Thunder.
Though Grade 2 hamstring strains typically involve a monthlong recovery process, Doncic is motivated to return to theLakers' lineup during the playoffs -- which is a shared goal for Austin Reaves, who is out because of a Grade 2 left oblique muscle injury, the basketball player’s agent Bill Duffy told ESPN.
Hamstring muscles power a player’s acceleration. Sudden bursts of speed without adequate flexibility or strength can cause a strain. It can be a pull, a partial tear, or a complete tear.
Symptoms include:
Prevention includes stretching, foam rolling, and strengthening exercises like deadlifts, leg curls, and bridges.
Hamstring strains are graded according to their severity. A grade 1 strain is mild and usually heals readily; a grade 3 strain is a complete tear of the muscle that may take months to heal.
Also read: For How Long Should You Be Able To Hold A Plank In Your 20s?
Basketball players are more likely to get hurt during matches than during training, with risks coming from tackling, sprinting, twisting, jumping, or even repeating the same movements until fatigue sets in. Collisions, poor conditioning, or re-injuring a previously weakened area can also contribute.
Sprained Ankle
Quick changes of direction and uneven surfaces make ankle sprains one of the most common basketball injuries. This happens when the ankle rolls inward or outward, overstretching the ligaments.
Protect, Optimal loading, Ice, Compression, Elevation, and avoid HARM factors: Heat, Alcohol, Running, Massage, in the first three days.
Groin Strain
Twisting, kicking, or rapid directional changes can strain the inner thigh muscles, also known as adductors.
Prevention is through regular stretching and strengthening exercises such as side lunges and adductor side bridges.
ACL Injury
The anterior cruciate ligament is critical for knee stability. Injuries often occur when the lower leg stays planted while the upper leg twists, during tackles, or awkward landings.
Mild sprains may heal with physiotherapy, but severe tears often require surgery. Persistent swelling or pain should be checked by a professional.
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