So what other therapeutic hope is there? One lifestyle factor is turning out to be very important in lowering the risk of developing Alzheimer’s disease: life-long education.  We have known for years that there is a link between education and dementia from population studies (Mortimer 1988). One particular piece of evidence has come from a Canadian team of researchers, who found that bilingual people were 5% less prone to developing dementia than people who couldn’t speak a second language. Another very convincing case for the apparently reduced risk of developing dementia has come from environmental enrichment studies in animals.