Both high and low blood pressure have been linked to increased dementia risk — and the relationship is not a straight line. Here is what a nationwide study of 4.5 million people found.
Dementia is not one disease — it is an umbrella term covering at least five distinct conditions, each with its own cause, pattern of progression, and typical symptoms.
A 12-year study following older adults found that losing your sense of smell alongside mild cognitive changes was linked to a dramatically faster path to dementia. Here is what the data actually shows.
Type 2 diabetes is linked to a 2.5-fold increased risk of vascular dementia. Here is how elevated blood sugar actually affects the brain.
Up to 45% of dementia cases may be linked to factors you can actually influence. Here is the life-stage breakdown, and which risk factors carry the biggest relative risk.
Not all exercise affects the brain equally. Research comparing exercise types found one — resistance training — stood out for slowing cognitive decline. Here is the evidence.