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Most people are slightly taller in the morning than at night, as the soft discs between the vertebrae decompress during sleep and compress again through the day.

Human anatomy

HealthScience

Why it matters

The idea in context

Standing, sitting and moving slowly squeeze fluid from the gel-like spinal discs; a night lying down lets them draw it back and expand. Astronauts, freed from gravity for months, can gain several centimetres. Human height feels fixed, but even it has a daily tide.

Türkçe

Aynı kart, başka bir dilde.

Çoğu insan sabahları geceye göre biraz daha uzundur; omurlar arasındaki yumuşak diskler uykuda gevşer, gün içinde yeniden sıkışır.

Ayakta durmak, oturmak ve hareket etmek jel kıvamındaki omurga disklerinden yavaş yavaş sıvı eksiltir; sırtüstü geçen bir gece disklerin yeniden sıvı çekip genişlemesine izin verir. Aylarca yer çekiminden uzak kalan astronotlar birkaç santim uzayabilir. İnsan boyu sabit sanılır, ama onun bile günlük bir gelgiti vardır.

Source trail

Read beyond the card.

Diurnal variation in height (~1-2 cm) from spinal disc compression; astronauts gain height in microgravity. NASA / physiology literature.

Background reading: Human heightAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
Open in the iPhone appEditorial method

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