Research has suggested that about 40% of dementia cases could be prevented or delayed by addressing 14 modifiable risk factors — alcohol abuse, smoking, diabetes, obesity, high ...

To examine how Internet use might impact dementia risk, the study team focused on more than 18,000 American adults. All were between the ages of 50 and 65 when the study was launched in 2002.

About 6.2 million people 65 and older have Alzheimer’s disease, the most common form of dementia, the US Centers for Disease Control and Prevention says. That number is expected to grow ...