Marcus Clark MPH · Lean Six Sigma Green Belt
Research-backed articles on movement, chronic disease, nutrition, public health, and wellness. Written by Marcus Clark MPH. Part of the Evolution of Wellness Resource Hub.
A 25-year study found people whose resting heart rate increased over time were 69 percent more likely to die from any cause. Here is what the number means and what actually changes it.
You Probably Do Not Know Your Resting Heart Rate. That is Worth Fixing. Read More »
Two gym sessions a week won’t undo five days of sitting. Here is what injury prevention actually looks like and why most people are missing the gap.
Exercise Is Not Enough. Here Is What Actually Keeps You From Getting Hurt. Read More »
Nearly 1,400 Americans were sickened by recalled food in 2024 and hospitalizations doubled. Here is what is driving contamination in the US food supply, and what you can do.
Hospitalizations from Contaminated Food Doubled in 2024. Here Is What Is Happening. Read More »
Infectious disease experts say parasitic infections are rare in the US, and parasite cleanses are unsupported by evidence. Here is what the science actually shows.
Conventional shoes measurably weaken intrinsic foot muscles over time. Here is what the research shows about barefoot footwear and how to transition safely.
Most Shoes Are Quietly Limiting How You Move. Here Is What the Research Says About That. Read More »
Most chronic disease starts silently in your 30s and 40s. Here is what is actually happening in your body and the five habits the research consistently identifies as highest impact.
Your 30s and 40s Are Not a Grace Period. They Are the Deciding Decade. Read More »
BCAAs, EAAs, and complete amino formulas all make different claims. Here is what the research shows about who actually benefits and when it is worth the investment.
The Amino Acid Supplement Market Is Oversold. Here Is Who Actually Benefits. Read More »
Most multivitamins have limited evidence for people with adequate diets. Here is when they make sense, what the research shows, and what separates quality from cheap.
Your Multivitamin Might Be Doing Nothing. Here Is How to Know. Read More »
Specific breathing techniques have measurable effects on cortisol, heart rate variability, and the autonomic nervous system. Here is what the research supports and what it does not.
Thirst is a lagging indicator. By the time you feel it, you are already behind. Here is what chronic mild dehydration actually does and how to stay ahead of it in summer.
Most People Think They Are Adequately Hydrated. The Research Suggests Otherwise. Read More »
Movement snacks — brief bouts of intentional movement throughout the day — reduce blood sugar spikes, lower cardiovascular strain, and fit into a real workday.
You Do Not Need a Gym Session to Move Your Body. You Need Two Minutes Every Half Hour. Read More »
The assumption that plant protein is inferior to whey is outdated. Here is what current research shows and why quality and heavy metals testing matter more than source.
Plant Protein Has Had an Inferiority Complex for Years. The Research Has Moved On. Read More »
Creatine grew 71.9% in 2025. The audience shifted to women, older adults, and everyday users. And the chew category has a serious quality problem most people don’t know about.
Synovial fluid, contractile proteins, nerve conduction speed. Here is what is actually happening inside your body during a warmup and the exercises ranked by physiological impact.
Desk jobs do specific damage from head to toe. A breakdown of what is happening in your body and what the research says actually helps.
10 Things Happening to Your Body Right Now If You Have a Desk Job Read More »
75 percent of Americans take dietary supplements. Most require no pre-market approval. Here is what the research actually supports and what questions to ask before buying anything.
Most people never think about how they breathe. The science on nasal breathing, nitric oxide, and breathwork suggests they should start.
You Have Been Breathing Wrong Your Whole Life. Here Is What Changing It Actually Does. Read More »
48 million Americans get food poisoning every year. Most of it happens at home. The myths worth busting and the basics that actually matter.
48 Million Americans Get Food Poisoning Every Year. Most of It Happens at Home. Read More »
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