Flexibility, balance, and muscle strength make a major difference in overall health, especially as we age. The best way to assess if these three attributes functioning properly, which is an indicator of a long, healthy life, is through the sitting-rising test (SRT). If you can’t pass this simple 10 second test, science says you’re 5 times more likely to die sooner. But don’t worry if you can’t pass it today. With a little time and effort, you will.