Dementia prevention: Modifiable risk factors and brain health

While age and genetics are non-modifiable risk factors for dementia, experts suggest that a significant portion of cases can be mitigated through lifestyle changes. According to the Alzheimer Research Initiative (AFI), approximately 45 percent of all dementia cases worldwide are linked to modifiable risk factors.

A 2024 report from the Lancet Commission identifies 14 modifiable factors, including obesity, high alcohol consumption, and type 2 diabetes. One key strategy for maintaining brain health is fostering regular social contact. Engaging in conversations helps train concentration, memory, and language skills, whereas social isolation is considered a risk factor for the development of dementia.