Activity & Longevity
Of all the strength tests researchers have studied for their link to long-term health, grip strength stands out. It's simple, it takes seconds to measure, and across large population studies, it consistently shows up as one of the strongest predictors of healthy aging — sometimes outperforming blood pressure and cholesterol as a mortality predictor.
Grip strength isn't really about your hands. It's a proxy for your overall muscular strength and neuromuscular function — the two systems that most directly determine whether you stay independent, mobile, and injury-resistant as you age. Weak grip strength in midlife and beyond is associated with higher risk of falls, slower recovery from illness, and reduced overall muscle mass (sarcopenia).
Hanging from a bar is a practical, equipment-free way to approximate this: it combines grip endurance with upper-body and core stability, and it scales naturally — the longer you can comfortably hang, the more strength and endurance reserve you're carrying.
There's no single official standard, but general benchmarks used in strength and longevity coaching circles look roughly like this for healthy adults:
If you're new to hanging, start conservatively — it's a more demanding test than it looks, especially for your forearms and shoulders.
Like most strength qualities, grip strength responds fairly quickly to consistent training — many people see meaningful improvement within 4–6 weeks.
Not sure where you stand? This is one of the questions in the AgeAi assessment — it factors your answer, along with other activity and fitness signals, into your overall projected age.