The Science of Optimization
Evidence-based articles on testosterone, habits, and men's health. Backed by research, built for action.
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How to Increase Testosterone Naturally: Full Guide
A research-based guide to supporting healthy testosterone naturally. Covers sleep, weight, exercise, nutrition, stress and lifestyle, what the studies actually show, and which popular claims are not supported.
Signs of Low Testosterone in Your 20s and 30s: What Every Man Should Know
Possible signs of low testosterone in young men, what the research says about declining levels, how doctors confirm a diagnosis, and what to do first. Educational, not medical advice.
The Ultimate Daily Routine for Testosterone Optimization: 15 Evidence-Informed Habits
A practical morning, afternoon and evening routine built from 15 habits, with what the research does and does not show about sleep, exercise, light, nutrition and consistency.
Testosterone Without TRT: Lifestyle Approaches and the Evidence
Which lifestyle changes may support healthy testosterone, how strong the evidence is for 8 strategies, when TRT is appropriate, and why to see a doctor first.
7 Best Health Apps for Men in 2026: What Each One Does Best
Seven health apps for men in 2026 compared by what each does best: testosterone habits, strength training, recovery, nutrition, stress, sleep and supplement research. THRIVE is our app, disclosed up front.
T-Maxing: The Complete Guide to Natural Testosterone Optimization in 2026
A research-based t-maxing guide. What t-maxing (testosterone maxxing) means, what the studies actually show about sleep, weight, exercise, nutrition and stress, which claims are overhyped, and how to track your habits.
Best Testosterone Apps in 2026: 6 Compared Honestly (Prices, Features, Ratings)
An honest comparison of six iPhone apps for supporting testosterone naturally: THRIVE, TestPeak, T-Score, Tmaxx, T-Up and TestoMax. Verified App Store prices, ratings, features and who each app suits. THRIVE is our app, disclosed up front.
Best Testosterone Apps in 2026: 6 Compared Honestly (Prices, Features, Ratings)
An honest comparison of six iPhone apps for supporting testosterone naturally: THRIVE, TestPeak, T-Score, Tmaxx, T-Up and TestoMax. Verified App Store prices, ratings, features and who each app suits. THRIVE is our app, disclosed up front.
THRIVE vs TestPeak (2026): Which Testosterone App Fits You?
A fair head-to-head of THRIVE and TestPeak (Testosterone Boost) using their US App Store listings: approach, features, pricing, ratings and who should pick which. THRIVE is our app, disclosed up front.
THRIVE vs T-Score (2026): Habit System or Daily Scorecard?
A fair head-to-head of THRIVE and T-Score: Boost Testosterone using their US App Store listings: features, pricing, ratings and who should pick which. THRIVE is our app, disclosed up front.
THRIVE vs Tmaxx (2026): Quiz-Based Plan or Daily Habit System?
A fair head-to-head of THRIVE and Tmaxx using their US App Store listings: approach, features, pricing, ratings and who should pick which. THRIVE is our app, disclosed up front.
Testosterone for Busy Dads: A Realistic 20-Minute-a-Day Plan
A time-boxed plan for fathers with little sleep and less spare time. Five levers (sleep, short strength sessions, walking, alcohol, stress) with the effect sizes from the research, plus when to see a doctor.
When to See a Doctor About Low Testosterone: Symptoms, Tests, and Red Flags
Which symptoms justify a testosterone test, which blood tests to ask for (morning total T, free T, SHBG, LH), what the Endocrine Society and AUA guidelines say, and what lifestyle can and cannot do.
Dad Bod and Testosterone: Waist, Visceral Fat, and What the Research Shows
How waist size and visceral fat relate to testosterone in men 35 to 49, why the link runs both ways, what weight-loss studies found, and a practical plan that fits a father's schedule.
Free Testosterone vs Total Testosterone: The Difference
Free vs total testosterone: total counts all testosterone in your blood, free is the small unbound 1 to 4%. See how SHBG and the lab method change results.
Does Weed Lower Testosterone? The Evidence Is More Complicated Than You Think
Studies on cannabis and testosterone point in different directions, while the evidence on sperm quality is more consistent. What research says about THC, CBD and male hormones, and its limits.