Photo: DragonImages/ Getty Images
2 of 5
20 Seconds
Stand on One Leg
It's a quick way to test your brain health: A 2015 study in Stroke found that the inability to balance on one leg for at least 20 seconds was linked to reduced cognitive function and an increased risk of cerebral small vessel disease, a condition that can lead to stroke, even in people who were otherwise healthy or weren't exhibiting any symptoms. If you topple easily, don't panic—but it might be time to see your physician for a checkup.
