Grasping DNA and its Influence on Wellness Let’s get this straight: the simplistic notion of biological determinism—the outdated belief that our genes are puppeteers pulling the strings of our health—has been thrown out the window. In the old days, genes were seen as tyrannical blueprints ruling over biological function. But after the Human Genome Project wrapped up in 2003, it was more like, “Hey, genes are just suggestions, not orders, depending on the company they keep.” Sure, those genetic quirks may seem like a family gift that keeps on giving, but remember, environment and lifestyle also hold the pen in this narrative. Diet, toxins, mood management, and stress? All these shape gene expressions, a ballgame known as epigenetics. It’s about factors “above” or “beyond” the…

Teachers live in language. The words we choose to cue a pose or movement change where a student puts their attention, and that shift changes how the body organizes itself. In motor‑learning research the distinction between “external” and “internal” cueing is now a fundamental principle—and it was a woman, researcher Gabriele Wulf, whose work beginning in the late 1990s helped define and popularize this idea. Her experiments and reviews showed repeatedly that directing learners’ attention to the effect of a movement (external focus) often produces better performance and learning than directing attention to body parts or muscle actions (internal focus). (frontiersin.org) What the two cue types mean What the evidence says (brief) Important nuance for teachers: neither cue type is “evil” or a silver bullet…

The previous two studies showed what happens over years—shrinking amygdalas, thickening prefrontal cortexes. This one shows what happens in ninety minutes. A 2020 study took 25 healthy adults, ages 24 to 52, and divided them into two groups. One completed the Ashtanga yoga primary series. The other performed an assigned series of physical exercises. Both groups underwent PET/MR brain scans before and immediately after. The finding: the yoga group showed altered glucose metabolism—the brain’s energy consumption—in seven distinct regions. The exercise group didn’t. 🧠 The Seven Regions The areas that changed tell a story: Hippocampus and parahippocampus — memory formation and spatial navigation. Where we encode experience. Striatum — reward processing and habit formation. Where repetition becomes pattern. Amygdala — fear and emotional processing. The…

l Last week we looked at research showing that sustained practice reduces the brain’s fear center. Today, a different direction: what practice builds. A 2017 study compared brain images of 21 female yogis aged 60 and older to a control group. The finding: yogis had thicker left prefrontal cortexes—the region that typically thins over time, leading to impaired memory and attention. The women in the study had practiced for an average of eight years. The researchers concluded that the longer you practice yoga, the more you protect your brain. 🧠 The Architecture of Attention The prefrontal cortex governs executive function—working memory, attention, decision-making, the ability to hold something in mind while doing something else. It’s what allows us to stay present rather than scattered. It’s…

The stiffness you feel during a winter workout isn’t just inconvenient—it’s your body’s intelligent response to cold, redirecting blood toward vital organs to keep you alive. But as sports medicine specialists explain, this survival mechanism comes with trade-offs that yoga practitioners should understand. ❄️ The Physiology of Cold When exposed to cold temperatures, the body initiates a cascade of protective responses: blood vessels in your extremities narrow to redirect blood toward your core, causing muscles and joints to stiffen. Shivering generates heat through involuntary muscle contractions. Blood pressure elevates as the heart works harder to circulate blood through narrowed vessels. And balance becomes impaired as stiff muscles lead to unsteady ankles and knees. Dr. Adam Tenforde of Harvard Medical School explains that rigid muscles “aren’t…