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The health reads, explained honestly.

Plain-language explainers on the numbers that actually matter, HRV, sleep, recovery and your body clock, and how TIDES reads each one. No filler, no fake certainty.

Body · recovery

What is HRV, and how do you actually read it?

Heart rate variability is one of the most useful and most misread numbers in health. Here is what it is, and how to read yours without fooling yourself.

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Body · sleep

How much sleep do you actually need?

Eight hours is an average, not a prescription. Your real number is personal, and it moves. Here is how to find it.

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Body · recovery

What is recovery, and how is it measured?

Recovery is not just how much you rested. It is how ready your body is for load today, and it is read from the night before.

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Body · sleep

What is sleep debt, and can you repay it?

Sleep debt is simple arithmetic: what you needed, minus what you got, added up. The interesting part is how it behaves.

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Body · body clock

Your circadian rhythm (body clock), explained

You run on an internal 24-hour clock. When your day fits it, everything is easier. When it does not, you feel it.

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