The reason why you need to sleep more than 7 hours

(1)insomnia and dementia
(2)It’s a study on sleep time and dementia
(3)Amyloid PET
(4)Brain scanning to show how much amyloid protein is piled up in the brain
(5)There’s amyloid PET
(6)The substances that build up in the brain during Alzheimer’s dementia
(7)A substance that builds up in the brain during Alzheimer’s and dementia is beta-amyloid
(8)Besides that, tau protein builds up in the brain
(9)When this stuff builds up, the brain is damaged
(10)It’s a toxic substance in the brain
(11)I took beta-amyloid PET
(12)If you take amyloid PET
(13)You can see how much beta amyloid is accumulated in your brain
(14)They slept for seven hours without dementia at all
(15)If you look at people who slept for 7 hours
(16)The whole brain turns blue
(17)Blue is almost free of beta-amyloid
(18)For those who slept for 6-7 hours
(19)The person who slept for 6-7 hours gets more red
(20)There’s a lot of red in the frontal lobe
(21)There’s a lot of red in the parietal lobe
(22)What happens to those who slept less than six hours
(23)I can see that there’s a lot more red
(24)In other words, beta amyloid builds up in the brain