All Articles | huuman Blog

All articles

Everything we have published, newest first.

Four horizontal bars on a dark background, the deep-sleep minutes caffeine took, one evening workout added, moderate evening exercise added only as a non-significant trend, and one watch missed, under the title How to get more deep sleep: what raises it, and by how much

How to get more deep sleep: what works, and by how much

By

Paired bars of three devices against the sleep lab on one night; the highlighted pair shows a watch counting 51 minutes of deep sleep where polysomnography counted 94, under the title How much deep sleep do you need?

How much deep sleep do you need? Lab numbers by age

By

Three green bars on a dark background: how much less people weighed than controls with aerobic exercise alone, by weekly dose, under the title Working out but not losing weight?

Working out but not losing weight? The reasons, measured

By

Three red bars of different length on a dark background: how much lower night-time HRV was after about one, three and seven drinks, under the title How to increase HRV

How to increase HRV: what works tonight and over months

By

Red range bars showing where more daily steps stopped lowering the risk of death: about 8,000 to 10,000 under 60 and 6,000 to 8,000 from 60, under the title Steps per day by age

Steps per day by age: how many you need, and what is enough

By

Two red lines for men and women showing usual walking speed over 4 meters from a standstill by age band, from about 1.1 to 1.2 m/s at 18 to 29 down to about 1.0 m/s at 80 to 85, under the title Average walking speed by age

Average Walking Speed by Age: Norms and a 4-Meter Test

By

Four rising bars in green on a dark ground under the title Creatine for women over 50: leg-strength change with placebo, creatine only, training, and training with creatine.

Creatine for Women Over 50: Benefits, Dose and Safety

By

Six red bars in two groups, for the daytime average, the night average and the lowest minute of heart rate in healthy men (78, 63 and 48 bpm) and women (81, 65 and 51 bpm) aged 50 to 65, under the title Sleeping heart rate

Sleeping heart rate: what is normal for men and women

By

Three red bars rising from left to right, for resting heart rate 3.4, 3.5 and 6.7 bpm lower than in controls in running trials of 12 weeks, 26 weeks and a year, under the title Lower your resting heart rate

How to lower resting heart rate: what works and how fast

By

Two lines of median grip strength for men and women from age 20 to 89, peaking in the thirties and falling after 40, under the title Grip strength by age

Average grip strength by age: chart, test, 8-week plan

By

Bars of bone density change at the spine and femoral neck with supervised strength training and without, under the title Strength training for women over 50

Strength training for women over 50: muscle, bone, plan

By

Range bars of the good push-up band for men and women from age 20 to 69, which falls with every decade, under the title Push-ups by age

How many push-ups should you be able to do? Norms by age

By

Bars showing weight, fat and lean change for three exercise groups on the same diet, under the title Lose fat, gain muscle

Body recomposition: lose fat and gain muscle after 40

By

Bars around a zero line showing that cardio did not measurably slow muscle growth or maximal strength, under the title Does cardio kill gains

Does cardio kill gains? Cardio before or after weights

By

Range bars of strength and muscle loss across the decades under the title Building muscle after 40

Building muscle after 40, 50 and 60: what really works

By

Timeline of strength, size and endurance over weeks without training under the title How long does it take to lose muscle

How long does it take to lose muscle? Week-by-week timeline

By

From the archive

Line showing median grip strength across the lifespan, under the title Sarcopenia

Sarcopenia: Muscle Loss With Age, Self-Tests and What Works

By

20 Pound Muscle Gain: How Long It Takes and a Realistic Plan

By

Ambition Goals: How to Set Big Targets Without Burning Out

By

Sleep Duration at Age 3: Guidelines, Naps & a Practical Reality Check

By

Can High Triglycerides Cause Weight Gain? The Real Link

By

VO2max: what it means, what counts as a good value, and how to interpret it properly

By

Cellulite Strength Training: The 12-Week Plan That Actually Makes Sense

By

Motivation for Runners: A Simple System to Run Consistently

By

How Long Should a Deload Last? Benchmarks, Decision Rules, and Example Weeks

By

Does Weight Training Make You Hungrier Than Cardio? The Real Drivers

By

VO2max Swimming: What It Means, How to Train It, and How to Track Progress

By

Reducing Body Fat as a Woman: Priorities, Weekly Plans, and Tracking

By

Best Time of Day to Meditate: Morning vs Midday vs Evening

By

What Is a Good Sleep Efficiency? Benchmarks, Formula, and What to Do Next

By

Why Does Caffeine Make Me Sleepy? The 8 Most Common Reasons

By

Strokes Per Minute: What’s a Good Rate for Rowing?

By

Chest Day: A Shoulder-Friendly Chest Workout Guide

By

How to Improve Concentration: What Helps Right Away

By

Training with Sore Muscles? How to Make the Right Call Safely

By

Aqua Running Calories Burned: Realistic Ranges + How to Estimate Yours

By

Zwift Zone 2 Training: Dial In the Right Intensity, Build Duration, Track Progress

By

Building Muscle While Sick: When to Train, When to Pause, and How to Come Back Safely

By

Music for Focus: Which Sounds Actually Help—and When They Get in the Way

By

4-7-8 Breathing: How to Do It, What It Does, How Often to Use It, and Safer Variations

By

Bananas & Blood Sugar: Ripeness, Portion Size, and the Best Pairings

By

Cardio Load: Meaning, Target Ranges, and How to Tell If Yours Is “Good”

By

Strength Training for Older Adults: A Safe, Simple Weekly Plan

By

Alpha Brain Wave Meditation: What It Is and How to Practice It

By

Caffeine-Free Herbal Tea for Sleep: Ingredients, Safety, and What to Buy

By

Caffeine Half-Life: Table, Examples, and What It Means for Your Sleep

By

HIIT on an Elliptical: 3 Repeatable Workouts + How to Progress

By

Tabata High-Intensity Workout: How to Train 20/10 Safely and Effectively

By

Greasing the Groove: A Practical, Everyday Plan for More Pull-Ups, Push-Ups, and Skills

By

HIIT Workout Plan: The 4-Week Plan (Home or Gym)

By

Air Bike Workout: 12 Sessions + 6-Week Plan (Beginner to Advanced)

By

Sunday Night Blues: Causes, Quick Relief, and a 10-Minute Sunday Reset Plan

By

Strength Training Plan: Templates for 2–4 Days per Week (with Progression)

By

Box Breathing (Square Breathing): How It Works—and When to Use It

By

What a 100 Sleep Score Really Means: Oura, Garmin, Fitbit, Eight Sleep

By

When Do You Start Seeing Results from Weight Loss? A Realistic Timeline + How to Track Progress

By

Alone at the Holidays: A Calm, Practical Plan to Reduce Loneliness

By

How Much Sleep Do Babies Need? Age Guide + Practical Tips for Parents

By

Dates & Blood Sugar: What They Really Do (and How to Use Them Wisely)

By

Muscle-Building Workout Plan for Women: 2–4 Days, Progression, Examples

By

Focus “On You” (and “In On You”): Meaning + a Practical 7-Day Plan

By

The “3 A.M. Wake-Up”: Causes, Quick Fixes, and When to Look Deeper

By

Metabolic Health Book: How to Choose the Right One (Plus Top Picks)

By

Resting Heart Rate in Athletes: Ranges, Norms, and When “Low” Is Too Low

By

Build Muscle Faster: An Evidence-Based Plan for Training, Nutrition, and Recovery

By

Drains Energy: What It Means and How to Find Your Biggest Energy Leaks

By

Marathon Recovery: Your Plan from the First 48 Hours to Week 4

By

Calorie Burn Treading Water: Realistic Benchmarks (By Weight & Intensity)

By

At-Home Strength Training for Women: Exercises, Plan, and Progression Without Equipment

By

Focus on What You Can Control: The huuman 3C Map for Less Worry and Better Actions

By

Deep Sleep Pillow Spray: What It Is, Whether It Works, and How to Choose Safely

By

How to Measure Waist and Hip Circumference: WHR Calculator, Guide, and Interpretation

By

Cardio Recovery (Heart Rate Recovery): What’s “Good” and How to Calculate It

By

Strength Training for Weight Loss: A Clear Plan to Lose Fat Without Losing Muscle

By

Deload in Bodybuilding: A Practical Guide to Better Recovery

By

How Long Does It Take to Notice Weight Loss? A Realistic Timeline: Scale, Mirror, and Photos

By

45 Minute Treadmill Workout: 3 Options You Can Do Today

By

Calculate VO2max: Calculators, Formulas, and Tests for Running & Cycling

By

Body Fat Percentage: Normal Ranges, Charts & How to Interpret (Women/Men)

By

Anger and Meditation: A Practical Guide to Responding Instead of Reacting

By

Best Recovery Slides (2026): A Stability-First Buying Guide

By

Triglyceride/HDL Ratio Calculator (TG:HDL) + Interpretation for Metabolic Health

By

Workouts With a Rowing Machine: 9 Sessions + 3 Weekly Routines

By

Build Muscle at Home: Training Plan, Progression, and Tracking (No Gym Required)

By

Electrodermal Activity (EDA) Score: Meaning, “Good” Ranges, and How to Interpret Your Trend

By

Deload Week Example: 3 Copy-Paste Plans (Plus How to Customize)

By

Convert HbA1c to Blood Glucose: Calculator, Table, and Formula (eAG/MBG)

By

Zone 2 Training Plan: Weekly Templates, Intensity Cues, and Progression

By

Body Scan: how to do it, what it does, and a 3-minute version to reduce stress

By

Deep Sleep Duration: How Much Is Normal (1–2 Hours?) + Table by Total Sleep Time

By

Waist Circumference in Women: Normal Ranges, Risk Thresholds & How to Measure

By

Sleeping Heart Rate: What’s Normal, What Patterns Matter, and When to Check It

By

Beginner Strength Training: A Clear 8-Week Starter Plan (Home & Gym)

By

Reading Focus Cards: What They Are, Who They Help, and How to Choose

By

Deload Weightlifting: The Simple Way to Recover Without Losing Progress

By

Metabolic Health Definition: What It Means and How to Measure It

By

VO2max Table: Values by Age & Sex (Women/Men) + How to Interpret Them

By

Dumbbell Strength Training: The Simple Full-Body Plan (2–3 Days/Week)

By

How to Focus on Yourself: Without Feeling Selfish

By

After a Marathon: The huuman Recovery Timeline (0–24h to 4+ Weeks)

By

Calories Burned During Strength Training: Ranges, Key Factors & a Realistic Comparison

By

Understanding HRV: Charts, Normal Ranges, and What “Good” Really Means

By

Strength Training for Women: A Practical Plan for Strength, Muscle, and Longevity

By

Concentration in Children: Causes, Quick Fixes, and Warning Signs

By

Longevity Protocol: How to Build a Personal, Evidence-Aware Plan

By

Sleep Music: How to Choose the Right Sound for Faster, Deeper Sleep

By

Muscle-Building Training Plan: Templates, Splits, and Progression (No Guesswork)

By

Building Muscle in Old Age: Strategies After 50

By

Muscle Building: An Evidence-Informed Plan for Training, Nutrition, and Recovery

By

Sleep and Longevity: The Most Underestimated Health

By

Mental Overload: Recognizing the Symptoms, Understanding the Causes, and Lightening Your Mental Load

By

Mindset & Stress – Overview

By

Sleep & Recovery – Overview

By

Metabolism, Nutrition & Energy – Overview

By

Strength, Muscle & Mobility – Overview

By

Heart & Cardio – Overview

By