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A biological clock calculator converts age into fascinating life statistics — heartbeats, breaths, days lived — giving perspective on human biology over a lifetime.

Wzór

Circadian rhythm: ~24.2 hours endogenous; entrained by light, temperature, social cues to exact 24 hours; Melatonin peaks 2–3 hours before sleep

CBT: Core body temperature minimum (Hours before wake time (typically 2–3 hrs))
Melatonin: Melatonin secretion onset (Hours before bedtime (7–9 PM typical))

Przewodnik krok po kroku

1Average resting HR ~70 bpm → ~100,800 beats/day
2Average breathing ~16/min → ~23,040 breaths/day
3Sleep occupies ~33% of life
4All are statistical averages

Rozwiązane przykłady

Wejście

Age 35

Wynik

~1.28 billion heartbeats; ~294 million breaths; 12,775 days lived

Często zadawane pytania

Why do I feel tired at different times?

Circadian rhythm driven by melatonin (hormone that peaks 2–3 hours before sleep). Light suppresses melatonin; darkness triggers it. Jet lag = circadian misalignment.

How do I fix my sleep schedule?

Light exposure critical: bright light 6 AM (phase advance sleep), dim by 9 PM (allow melatonin rise). Takes 3–7 days per hour of shift. Avoid screens 1 hour before bed.

Are "night owls" real?

Mostly genetic (15–20% of population naturally later). Adolescents shift 1–2 hours later (circadian phase delay). Adults past 30 shift earlier. Shift work causes chronic circadian misalignment.

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