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Как работает нырятельный рефлекс #veritasium #vertdider #наука


less than 1m read
·Nov 3, 2024

У людей благодаря эволюции есть секретное средство, которое позволяет снизить расход кислорода. Рефлекс млекопитающих — это физиологическая адаптация, оптимизирующая наши внутренние процессы при погружении.

Тройничный нерв, благодаря изменению температуры, понимает, что вокруг вода, и запускает цепочку ответных реакций. Замедляется сердцебиение, и вместе с тем снижается скорость, с которой в организме циркулирует кровь и разносится кислород.

Сосуды в конечностях сужаются, кровь приливает к жизненно важным органам и мозгу. И за счёт этого нам хватает кислорода, чтобы оставаться в сознании.

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