Given the results as submitted, there is strong indication that head covering while sleeping has a significant impact on the occurrence and advance of dementia.
92.8% of those who practiced any form of head covering while sleeping will suffer from either an early, middle or late stage of dementia at or after 70 years of age.
100% of those who practiced the most serious levels of head covering (c, d and e above) while sleeping will suffer from either an early, middle or late stage of dementia at or after 70 years of age.
Head covering while sleeping may cause dementia to occur at an earlier age.
When comparing uncovered to covered practices, the percentages of those in the middle and late stages of dementia are approximately doubled for those who practice any level of covering (but less so for those 80 and above).