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.
Because of the change in the day/night length across seasons, people actually get more sleep in the winter than in the summer–almost an hour more per night! 🌚
BrainCraft was created by Vanessa Hill (@nessyhill) and is brought to you by PBS Digital Studios. Talking psychology, neuroscience & why we act the way we do.