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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
Recovery

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

How to increase deep sleep: the common tips sized in sleep-lab minutes, what cuts it, what does not help, and a routine.
By
huuman

Latest articles

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?
Recovery

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

By
huuman
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?
Metabolism

Working out but not losing weight? The reasons, measured

By
huuman
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
Heart

How to increase HRV: what works tonight and over months

By
huuman
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
Heart

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

By
huuman
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
Heart

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

By
huuman
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.
Metabolism

Creatine for Women Over 50: Benefits, Dose and Safety

By
huuman
All articles

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General

Introducing huuman: The Science of Living Better, Longer

By
huuman
General

Healthspan vs. Lifespan: What Actually Matters

By
huuman
General

What Your Annual Checkup Misses

By
huuman
General

The Five Dimensions of Health

By
huuman

From the archive

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

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

By
huuman
Frame

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

By
huuman
Mind

Ambition Goals: How to Set Big Targets Without Burning Out

By
huuman
Recovery

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

By
huuman
Metabolism

Can High Triglycerides Cause Weight Gain? The Real Link

By
huuman
Heart

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

By
huuman
Frame

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

By
huuman
Mind

Motivation for Runners: A Simple System to Run Consistently

By
huuman
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