Biological clock
Description 67 biomarkers
The question behind every difficult morning: is your body really running on a stable schedule? We read the chemistry of your internal clock, not the hours recorded by a wearable, which shows whether yours is drifting even on nights when you slept enough. It is one of the fastest-responding signals: most people see it stabilise within a month when their light exposure, meal timing, and wake-up time change.
- 11beta-Hydroxyandrostenedione
- 15-oxo-ETE
- AAMU, a caffeine metabolite
- Acetylcarnitine
- 1-Methyluric acid
- 1,7-Dimethyluric acid
- 15-Hydroxyeicosatetraenoic acid
- 2-Hydroxybutyric acid
- 2-Oxobutanoic acid
- 2,6-Dihydroxypyridine
- Hydroxy cholestanoic acid
- Plant-derived coumaric acid
- Dihydroxyphenylpropionic acid
- Glycochenodeoxycholic acid
- Glycodeoxycholic acid
- Guanidinoacetic acid
- Indole-3-acetic acid
- Indole-3-lactic acid
- Indole-3-propionic acid, a tryptophan metabolite
- Inosinic acid
- Kynurenic acid
- Methylimidazoleacetic acid
- Nicotinic acid, a form of vitamin B3
- Uric acid
- Urocanic acid
- Adenosine
- Adenosine monophosphate
- Adrenaline (epinephrine)
- Asparagine
- Butyrylcarnitine
- Caffeine
- Cortisol
- Creatine
- D-Ribose 5-phosphate
- Dihydrourocanate
- Ectoine
- gamma-aminobutyric acid
- Glutamine
- Histamine
- Histidinol
- Hypoxanthine
- Indole-3-acetamide
- Indoxyl Sulfate
- Inosine
- Isoleucine
- Kynurenine
- Leucine
- Niacin metabolite
- Methionine
- Muscle methylhistidine
- Methylmalonate
- Nicotinamide
- Normetanephrine
- Oxindole-3-acetate
- Pantothenate
- Paraxanthine
- Phenylacetylglutamine
- Phenylalanine
- Proline
- Serine
- Sphingosine
- Sphingosine 1-phosphate
- Taurine
- Testosterone
- Threonine
- Tryptophan
- Xanthine