Brain training helped older adults stay sharp for years: study

This seems to go against all the previous studies that brain training only helped you in the tasks that were trained upon. But what the hell do I know. Ask your doctor what you need to do to prevent your 33% chance of getting dementia/Alzheimers post stroke.
http://news.yahoo.com/brain-training-helped-older-adults-stay-sharp-years-051755376--finance.html

Older adults who underwent a brief course of brain exercises saw improvements in reasoning skills and processing speed that could be detected as long as 10 years after the course ended, according to results from the largest study ever on cognitive training.

The findings, published on Monday in the Journal of the American Geriatrics Society, offer welcome news in the search for ways to keep the mind sharp as 76 million baby boomers in the United States advance into old age.

The federally sponsored trial of almost 3,000 older adults, called the Advanced Cognitive Training for Independent and Vital Elderly study, or ACTIVE, looked at how three brain training programs - focusing on processing speed, memory and reasoning ability - affected cognitively normal adults as they aged.