Preston Hayes

Former pharma sales rep who got disillusioned with the spin. Now writes independently about reading health studies critically.

Articles by Preston Hayes

Latest Posts

Nutrition

Arginine Amino Acid May Prevent Cavities Before Formation

Oral bacteria metabolize sugars from meals, producing acids that slowly dissolve tooth enamel and lead to cavity development. These microbes do not exist in isolation; instead, they create thick, adhesive plaque formations called dental biofilms that adhere firmly to tooth surfaces. Inside these biofilms, acid generation intensifies, speeding up the destruction of dental structures. Arginine’s […]

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Fitness

Ronda Rousey vs Gina Carano Netflix Fight: Date, Stats, Ages

Netflix has recently revealed plans for its inaugural live mixed martial arts event, backed by Jake Paul’s MVP promotion, featuring two iconic female fighters who are far from novices in the intense world of combat sports. Ronda Rousey is set to stage a remarkable comeback on May 16, 2026, taking on women’s MMA trailblazer Gina […]

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Nutrition

Magnesium’s Role in Optimizing Vitamin D Levels

Scientists from the Vanderbilt-Ingram Cancer Center have discovered that magnesium is essential for maintaining proper vitamin D concentrations within the human body. Through a carefully designed randomized clinical trial, supplementation with magnesium successfully elevated vitamin D levels among individuals suffering from deficiencies, while simultaneously decreasing them in those who already possessed elevated amounts. These results […]

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Science

Multiple Pathways Drive Therapy Resistance in Triple-Negative Breast Cancer

Approximately 50% of patients diagnosed with triple-negative breast cancer (TNBC) eventually develop resistance to their prescribed therapies. This resistance significantly heightens the risk of tumor recurrence following initial treatment, thereby drastically diminishing overall survival prospects for those affected. A team of scientists from Baylor College of Medicine has uncovered compelling evidence indicating that TNBC employs […]

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Nutrition

2025’s Top 10 NutritionFacts.org Videos Revealed

Our team produces over a hundred fresh videos annually, each one representing the result of extensive research efforts spanning numerous hours. We meticulously review tens of thousands of scientific studies published in peer-reviewed medical journals, sparing busy individuals like yourself the time and effort required to sift through this vast body of information. During the […]

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Nutrition

GLP-1 Weight Loss Drugs Like Ozempic Show Promise Amid Key Concerns

Recent Cochrane reviews, freshly published, determine that GLP-1 medications including Ozempic facilitate significant reductions in body weight. Nonetheless, these evaluations also point out substantial worries regarding the extensive participation of pharmaceutical companies in numerous research efforts. The World Health Organization tasked these reviews with the goal of influencing forthcoming international standards for employing such drugs […]

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Science

Liver Congestion’s Perilous Path: New Pathway to Fibrosis, Cancer

Prolonged blood stagnation within the liver, referred to as chronic liver congestion, frequently results in a spectrum of severe conditions, including some that prove lethal. Nevertheless, the precise mechanisms by which liver congestion precipitates these illnesses have long eluded clear understanding, thereby complicating the identification of optimal therapeutic strategies. Researchers from Japan, in a comprehensive […]

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Fitness

Doug Hardtke: Firefighter Strongman Who Builds Fitness Legacy

_Muscle & Fitness_ has motivated countless individuals to embrace fitness over the years. From its influential print magazines that established its iconic status to today’s vibrant social media presence and online articles, the brand has likely touched the lives of many who prioritize their health and wellness at some juncture. For Doug Hardtke, a dedicated […]

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Fitness

11 Essential Walking Goals for Fitness Success

11 Walking Resolutions to Make Now If getting in shape always seems like something you’ll begin tomorrow or on January 1, it’s time to shake up your approach. These 11 walking resolutions offer simple commitments that build lasting habits, giving you a strong foundation to achieve your fitness objectives ahead of schedule. 1. Walk at […]

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