To help conserve this stored oxygen, they also lower their heart rate.

为了帮助保存这种储存的氧气，他们还降低了心率。

Blood flow is redirected towards only the most essential organs like the heart, lungs, and brain, which rely on reserve oxygen stored in blood and muscle.

血液流向被改变，仅流经最重要的器官，如心脏，肺和大脑，这些器官依赖于血液和肌肉中储备的氧气。

Whenever we dive into the water, our heart rate's slow and the blood vessels in our arms and legs narrow to conserve the oxygen stored inside your body.

当我们潜入水中的时候，我们的心率会变慢，手臂和腿上的血管会变窄，以保存储存在体内的氧气。

Over thousands of years living as nomadic hunters at sea, they have genetically-hardwired unusually large spleens that act as oxygen stores, enabling them to stay underwater for longer — an adaptation similar to that of deep-diving seals.

作为在海上生活几千年的 “游牧民族”，他们拥有与生俱来的更大的脾，可以存储氧气，帮助他们在水下停留更长时间——就像海豹的遗传适应一样。