PROTIME-FITNESS HOLISTIC HEALTH AND WELLNESS

  B12 INJECTIONS: FACTS AND FICTION Vitamin B12 shots are the go-to fix for anyone who can’t absorb enough B12 from food—think people with gut conditions or those who’ve had bariatric surgery (Frontiers in Pharmacology). For these folks, injections aren’t just helpful; they’re essential. The upsides of B12 shots are pretty straightforward. They correct a deficiency, treat certain types of anemia, and keep nasty neurological problems at bay. If you’re low on B12, these injections can be a game-changer. B12 is like fuel for your cells. Your body needs it to make red blood cells, which deliver oxygen and help crank out energy. So yes, B12 is crucial for feeling good and keeping your body running smoothly. But here’s where the hype gets ahead of the science: if you already have enough B12, getting extra—whether through a shot or a pill—won’t magically boost your energy (Nutrients). The idea that B12 shots are some secret weapon for energy or vitality just doesn’t hold up for healthy pe...

THREE MEALS A DAY: HISTORY AND SCIENCE You might think breakfast, lunch, and dinner are written into the laws of nature. Turns out, the three-meal-a-day routine is more about history than biology. For most of human history, people just ate when it made sense—no one was checking the clock. Back in medieval Europe, for example, folks usually sat down for two meals: a big one in the middle of the day, and something lighter later on. The idea of three set meals didn’t really take root until industrialization. Suddenly, factories and city life demanded strict schedules, and meals followed suit (Carroll, "Three Squares: The Invention of the American Meal"). Even today, the three-meal system is mostly a Western export. Look around the world, and you’ll see all kinds of eating patterns—shaped by local customs, what’s growing nearby, and what’s considered normal, not some universal law of biology (Chiva, British Journal of Nutrition). So, does eating three times a day actually make yo...

  EXERCISE: NOT A WEIGHT LOSS  SOLUTION WITHOUT DIET MODIFICATIONS Hitting the gym is a solid move, but if you’re counting on workouts alone to shrink your waistline, you might be in for a surprise. A new study in Current Biology suggests our bodies are sneakier than we think—they can adapt to increased exercise, so doubling down on sweat sessions doesn’t always torch as many extra calories as you’d hope. The scientists behind this research want us to rethink our go-to weight loss formula. Their message? Exercise is great, but it’s not the whole story—what you put on your plate matters as much, if not more. “Exercise is fantastic for your health,” says Herman Pontzer from City University of New York. “That’s non-negotiable. There’s a mountain of evidence showing exercise boosts your body and mind. None of our findings change that. But if you’re aiming to lose weight, diet has to be part of the plan.” Sound familiar? You start working out, the scale dips for a while, then—bam—p...

  OBESITY CANCER RISKS RISING Obesity is driving a sharp increase in cancer deaths across the U.S., with new research showing that deaths from cancers linked to obesity have tripled in the past two decades. The latest numbers, presented at ENDO 2025 by The Endocrine Society, paint a troubling picture—women, older adults, and minority groups, especially those in underserved and rural areas, are bearing the brunt of this crisis [The Endocrine Society, 2025]. Researchers analyzed over 33,000 deaths from obesity-related cancers and found the most significant spikes among Black Americans, Native Americans, and people living outside big cities. Dr. Faizan Ahmed, the study’s lead author, stressed the urgency of improving early cancer screening and healthcare access for high-risk groups. “Obesity is a major risk factor for multiple cancers, leading to substantial mortality,” Ahmed said. “Our results highlight the need for targeted public health efforts and equitable healthcare access” [END...

  SEMAGLUTIDE: MUSCLE LOSS IN WOMEN Recent research points to a lesser-known effect of semaglutide, the popular weight-loss drug: it doesn’t just shrink fat. For women and older adults, especially, there’s a catch—losing muscle along with the pounds. The study, presented at ENDO 2025, tracked 40 adults with obesity over three months. Some took semaglutide, while others followed a structured diet and lifestyle program. Both groups lost weight, but up to 40% of the loss came from lean body mass—meaning muscle, not just fat. This effect was more pronounced in people who didn’t eat enough protein, which could actually lessen some of the drug’s benefits for blood sugar control. Researchers found that women, older adults, and individuals with lower protein intake lost more muscle mass on semaglutide. The more muscle they lost, the less their blood sugar improved—a crucial concern if you’re taking the medication for metabolic health. Dr. Melanie Haines, the study’s lead author, emphasized...

HEALTHY AGING: STAYING ACTIVE MAKES A DIFFERENCE It’s easy to think that if you weren’t a gym rat in your twenties, you’ve missed the boat on the health benefits of exercise. Not true. Shifting to a more active lifestyle—at any point in adulthood—can cut your risk of dying from any cause, especially heart disease. A major review in the British Journal of Sports Medicine found that people who keep moving regularly slash their odds of death by 30–40%. Even if you only start getting serious about exercise later in life, you’ll still see a 20–25% reduction in risk. The Big Picture Researchers examined 85 studies involving hundreds of thousands of adults to determine how exercise habits (or the lack of them) shape longevity. The old advice—get 150–300 minutes of moderate or 75–150 minutes of vigorous exercise each week—is still solid. But most earlier studies only checked in on people’s activity once. This new research wanted to know: Does it matter if you change your habits as you get olde...

 SUGARY DRINKS AND AFIB A  study published in Circulation: Arrhythmia and Electrophysiology, a journal from the American Heart Association, finds that adults who drink two liters (about 67 ounces) or more of sugar-sweetened or artificially sweetened beverages each week are at a higher risk of developing atrial fibrillation (AFib), an irregular heart rhythm, compared to those who consume less. In contrast, those who drank up to 1 liter (about 34 ounces) of pure, unsweetened juice—such as orange or vegetable juice—were less likely to develop AFib. While the study couldn’t prove that sweetened drinks directly cause AFib, the association remained even after accounting for genetic risk factors. Previous research has already linked sweetened drinks to conditions like Type 2 diabetes and obesity, but this is one of the first large-scale studies to explore a possible link with AFib. AFib raises the risk of stroke fivefold, and by 2030, more than 12 million Americans are expected to ha...