Could Height Be Linked to Dementia Risk?
Dementia risk is not something most people would connect with height. But a new study suggests there may be a relationship, at least in men. The findings point to a possible pattern: taller men may be less likely to develop dementia later in life.
According to research published in eLife, men had a 10% lower risk of dementia for every 6 centimeters above 5 foot 5 inches.
What the Study Found
Researchers examined 666,000 Danish men born between 1939 and 1959. Among them, 10,599 men developed dementia during the study period.
The results showed that taller men in early adulthood had a lower risk of dementia later in life. This association remained even after researchers adjusted for education and intelligence.
Earlier studies had also suggested a connection between height and dementia. However, those studies did not fully account for factors such as genetics, environment, and other shared influences.
Why Researchers Think the Link Matters
In this study, the relationship became even more noticeable when researchers compared brothers with different heights. Similar patterns were also seen in twins.
Because of this, the researchers said the connection between height and dementia could not be explained simply by shared genetics or by other factors siblings commonly experience. The findings support the idea that there is a real relationship between height and dementia risk in men.
Researchers believe the answer may lie in early childhood, although the study does not yet explain exactly why this happens.
Bottom Line
This research adds to earlier findings and strengthens the possible link between height in young men and dementia risk later in life. Even so, more research is still needed before there are clearer answers.
For now, the study helps open the door for future research into why this connection exists and what early-life factors may be involved.
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