Morning or Night Person?
Your body clock never asked your alarm for its opinion. Let's see which of the two is right.
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About this test
Chronotype — the tendency to run early or late — is not a preference or a matter of willpower. It is a partly inherited biological trait: several circadian clock genes, including those of the PER family, carry variants associated with earlier or later functioning. Twin studies put the heritable share at around half, with the rest coming from age, light exposure and the constraints of daily life.
Age matters a great deal, in fact: adolescence shifts the clock later in a well-documented way, and the slider drifts back towards morning over the following decades. The teenager who isn't asleep before midnight isn't necessarily undisciplined, and the grandfather up at six deserves no extra credit. In both cases it's the clock talking.
The trouble is that collective schedules are calibrated for one profile only. Night people accumulate sleep debt through the week and repay it at weekends: researchers call that gap social jetlag. This test won't tell you to change your clock — it rarely moves more than an hour or two — but it will tell you which one you have, and that alone is enough to stop scheduling your hardest work at the worst hour of your day.
How it works
The sixteen statements cover spontaneous waking, hours of peak focus, appetite and bedtime. Evening statements count in reverse, which stops you ticking the same box all the way down. The resulting average places your slider between the two poles.
This test is provided for entertainment purposes only. It is not a diagnosis or professional advice.