<P> A number of factors can decrease the risk of dementia . A group of efforts is believed to be able to prevent a third of cases and include early education, treating high blood pressure, preventing obesity, preventing hearing loss, treating depression, being active, preventing diabetes, not smoking, and preventing social isolation . A 2018 review however concluded that no medications have good evidence of a preventative effect including blood pressure medications . </P> <P> Among otherwise healthy older people, computerized cognitive training may improve memory . However it is not known if it prevents dementia . Short term exercise has limited evidence . In those with normal mental function evidence for medications is poor . The same applies to supplements . </P> <P> Except for the treatable types listed above, there is no cure . Cholinesterase inhibitors are often used early in the disorder course; however, benefit is generally small . Cognitive and behavioral interventions may be appropriate . There is some evidence that educating and providing support for the person with dementia, as well as caregivers and family members, improves outcomes . Exercise programs are beneficial with respect to activities of daily living and potentially improve dementia . </P> <P> Psychological therapies for dementia include tentative evidence for reminiscence therapy, some benefit for cognitive reframing for caretakers, unclear evidence for validation therapy, and tentative evidence for mental exercises, such as cognitive stimulation programs for people with mild to moderate dementia . </P>

Which type of dementia has a clear genetic link