Скачать или смотреть Why Astronauts Grow Taller in Space, The Science Explained

Have you ever wondered why astronauts grow taller while they’re in space? It’s a fascinating phenomenon caused by the effects of microgravity on the human body — specifically the spinal decompression that happens when gravity’s pull disappears.

On Earth, gravity constantly compresses the discs between our spinal vertebrae, keeping our height consistent. But in space, without gravity’s downward force, these spinal discs expand, allowing astronauts to grow up to 5 centimeters (about 2 inches) taller while orbiting the Earth.

This temporary height increase reveals just how much our bodies rely on gravity every day for posture, bone health, and overall physical stability. Once astronauts return to Earth, gravity compresses their spines back to their normal height within a few days.

Understanding this incredible effect is just one example of how space travel challenges the human body — and why space medicine is so important for future missions to the Moon, Mars, and beyond.

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