The results of a meta-analysis suggest any amount of physical activity is better than none.
The review, which pooled results from 15 studies involving a total of over 750,000 participants, concluded that even amounts of leisure-time physical activity well below recommended levels were associated with lower risk of stroke compared with being sedentary.
These results do not suggest you should do the bare minimum! According to the study authors, highly active individuals have a 21 percent lower risk
of ischemic stroke (caused by blocked blood vessels in the brain) and a 34 percent lower risk of hemorrhagic stroke (when a blood vessel bursts) compared with low-active individuals. For maximum health benefit, including stroke prevention, the Physical Activity Guidelines for Americans recommend at least 150 minutes a week of moderate activity or 75 minutes of vigorous activity. If you are unable to make that goal, this study adds reassurance that any movement is better than no movement. Start where you are, do what you can, and, if possible, add on.