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BrainCraft
Your Biological Clock at Work
Season 3
Episode 29
This sleep cycle is a good average: your circadian rhythm can shift somewhat depending on your sleep/wake schedule. If you wake consistently at 9am, then your blood pressure with go up closer to 8:45am and everything else will be shifted as well. It's tied to sunlight A LOT but since we have artificial light, there's wiggle room within that.
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