Zone 2 Training: The Science Behind Easy Cardio for Longevity
What Zone 2 training is, what research says about mitochondria, fat oxidation and longevity, and how it fits with high-intensity work.
What Are Peptides? A Plain-English Guide to the Science
What peptides are, how they work in the body, which are approved medicines, and how to read peptide research without the hype.
VO2max and Longevity: Why Fitness May Be Your Most Important Health Metric
Research links cardiorespiratory fitness to lower mortality more strongly than many traditional risk factors. Here's what that means.
Time-Restricted Eating: What Randomized Trials Show for Fat Loss
Does eating in a shorter window help you lose fat? A look at randomized trials on time-restricted eating, intermittent fasting and muscle.
Thymosin Beta-4 and TB-500: The Research Behind the Recovery Claims
What's known about thymosin beta-4 and the TB-500 fragment from lab, animal and limited human studies, plus safety and sport rules.
Sleep and Athletic Recovery: The Performance Enhancer Everyone Ignores
What research shows about sleep, athletic performance, injury risk and recovery, plus evidence-based sleep hygiene for active people.
Sauna and Cold Exposure: What the Research Says About Heat, Ice and Longevity
Sauna bathing is linked to lower cardiovascular mortality in large studies. Here's the evidence on heat and cold exposure.
Resistance Training and Sarcopenia: Why Strength Is a Longevity Skill
Sarcopenia, age-related muscle loss, is preventable and treatable. Here's what research says about resistance training at any age.
Rapamycin and Longevity: What Mouse Studies and Human Research Show
Rapamycin extends lifespan in mice. Here's what that research means, what's known in humans, and the open safety questions.
Protein Intake for Muscle and Healthy Aging: What Meta-Analyses Show
How much protein supports muscle, strength and fat loss? A research-based guide covering amounts, timing, plant vs. animal and aging.
Research Peptides, Purity and Regulation: What Every Reader Should Know
Why "for research use only" peptides raise quality, legal and safety concerns, and how to evaluate claims about purity and testing.
NAD+ Precursors (NR and NMN): Separating Science from Supplement Hype
NAD+ declines with age, and NR and NMN supplements promise to restore it. Here's what human trials actually show.