Some of us like sleeping with the TV on, others want it off – and it can cause problems for a couple that can’t agree on which way to go.
But a new study shows that those who prefer it off just might be in the right.
They scanned the brains of those in the study while they slept with the TV on and found that hearing unfamiliar voices, like those on TV, can trigger a micro-arousal, where you almost wake up. And if it happens too much during the night, it’ll leave you groggy.
The study found that familiar voices – like those of the people you live with, don’t have the same effect.
Scientists think that it’s the brain’s way of protecting us at night while we’re asleep – an unfamiliar sound could mean there’s a threat.
So, if you do like to fall asleep with the TV on, make sure you use the sleep timer – so you’ll be more rested.
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