Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that's hurtling towards us. And we owe all these abilities to an interconnected system of timekeepers in our brains. But how do they work? Marco A. Sotomayor details how human bodies naturally tell time. [5:08]

Additional Tags

internal clock, nerve impulses, reactions, biochemical mechanisms, ted ed: how does your body know what time it is?

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Classroom Considerations

• Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional|practice