Some will be spurious, where the correlations are real but the variables don’t affect each other. Others will be useful, where the correlations indicate real causality or at least a real relationship.
One of my favorite health markers—one that is both modifiable and a good barometer for the conditions it appears to predict—is grip strength.
In middle-aged and elderly people, grip strength consistently predicts mortality risk from all causes, doing an even better job than blood pressure. In older disabled women, grip strength predicts all-cause mortality, even when controlling for disease status, inflammatory load, depression, nutritional status, and inactivity.
Poor grip strength is also an independent risk factor for type 2 diabetes across all ethnicities, and it can predict the presence of osteoarthritis in the knee. Among Korean adults, those with lower grip strength have a greater risk of clinical depression.
Even when hand grip strength fails to predict disease, it still predicts the quality of life in people with the disease. The relative rate of grip strength reduction in healthy people is a good marker for the progression of a general aging. Faster decline, faster aging. Slower (or no) decline, slower aging. Stronger people—as indicated by their grip strength—are simply better at navigating the physical world and maintaining independence on into old age.
Health and longevity aside, there are other real benefits to a stronger grip.
You command more respect. I don’t care how bad it sounds, because I agree. Historically, a person’s personal worth and legitimacy were judged by the quality of their handshake. Right or wrong, that’s how we’re wired.
If you think you feel differently, let me know how you feel the next time you shake hands and the other person has a limp, moist hand. Who are you more likely to respect? To hire? To deem more capable? To befriend? To approach romantically? I’m not saying it’s right.
I’m saying it’s simply how it is. We can’t avoid our guttural reaction to a strong—or weak—handshake. To me, that suggests we have a built-in sensitivity to grip for a very good reason.
So, how does one build a grip?
Most people will get a strong enough grip as long as they’re lifting heavy things on a consistent-enough basis.
Deadlifts are proven, grip builders. Wide grip deadlifts are also good and stress your grip across slightly different angles.
Both require a good grip on the bar.
Any exercise where your grip supports either your weight or an external weight (like a barbell, dumbbell, or kettlebell) is going to improve your grip strength.
But there are other, more targeted movements you can try to really turn your hand into a vise. Such as:
This is pretty simple. Just hang from a bar (or branch, or traffic light fixture) with both hands. It’s probably the purest expression of grip strength. As it happens, it’s also a great stretch for your lats, chest, shoulders, and thoracic spine.
Aim to hit one minute. Progress to one-hand hangs if two-handers get too easy. You can use a lower bar and keep one foot on the ground for support as you transition toward a full one-handed hang.
Grab the heaviest sledgehammer you can handle and use it in a variety of ways.
If you had to pick just one sledgehammer movement to target your grip, do the bottoms up. Hold the hammer hanging down pointing toward the ground in your hand, swing it up and catch it with the head of the hammer pointing upward, and hold it there. Handle parallel to your torso, wrist straight, don’t let it fall. The lower you grip the handle, the harder your forearms (and grip) will have to work.
Most people who try fingertip pushups do them one way. They do them with straight fingers, with the palm dipping toward the ground. Like this. Those are great, but there’s another technique as well: the claw. For the claw, make a claw with your hand, like this, as if you’re trying to grab the ground. In fact, do try to grab the ground. This keeps your fingers more active, builds more strength and resilience, and prevents you from resting on your connective tissue.
These are hard for most people. They’re quite hard on the connective tissue, which often goes underutilized in the hands and forearms. Don’t just leap into full fingertip pushups—unless you know you’re able. Start on your knees, gradually pushing your knees further back to add resistance. Once they’re all the way back and you’re comfortable, then progress to full pushups.
These are similar to claw pushups, only with the palm down on the floor. Flat palm, active “claw” fingers. They are easier than fingertip pushups.
The average person these days is not carrying water pails and hay bales and feed bags back and forth across the uneven ground like they did when over 30% of the population lived on farms, but the average person can quickly graduate past average by doing farmer’s walks a couple of times each week. What is a farmer’s walk?
Grab two heavyweights, stand up, and walk around. They can be dumbbells, barbells, kettlebells, or trap bars. You can walk up a hill, downhill, or around in circles. You can throw in some shrugs, or bookend your walks with deadlifts or swings. The point is to use your grip to carry something heavy in both hands.
Grasp and hold weight plates between your thumb and each finger.
Next time you do some curls, throw in a few sets of hammer curls. These are identical to normal bicep curls, except you hold the weights in a hammer grip, with palms facing toward each other—like how you hold and swing a hammer. Make sure to keep those wrists as straight as possible.
The thing about the grip is it’s hard to work your grip without getting stronger, healthier, and faster all over. Deadlifting builds grip strength, and it also builds back, hip, glute, and torso strength. Fingertip pushups make your hands and forearms strong, but they also work your chest, triceps, abs, and shoulders.
That’s why I suspect grip strength is such a good barometer for overall health, wellness, and longevity. Almost every meaningful piece of physical activity requires that you use your hands to manipulate significant amounts of weight and undergo significant amounts of stress.
For that reason, the best way to train your grip is with normal movements. Heavy deadlifts and farmer’s walks are probably more effective than spending half an hour pinch gripping with every possible thumb/finger permutation because they offer more full-body benefits. But if you have a few extra minutes throughout your workout, throw in some of the dedicated grip training.
Your grip can handle it. The grip muscles in the hands and forearm are mostly slow-twitch fiber dominant, meaning they’re designed to go for long periods of exertion. They’re also gross movers, meaning you use them all the time for all sorts of tasks, and have been doing so for decades.
To make them adapt, you need to stress the heck out of them with high weight. Train grip with high reps, heavyweights, and long durations. This is why deadlifts and farmer’s walks are so good for your grip—they force you to maintain that grip on a heavy bar or dumbbell for the entire duration of the set with little to no rest.
Oh, and pick up some Fat Gripz. These attach to dumbbells and barbells and increase the diameter of the bar, giving you less leverage when grabbing and forcing you to adapt to the new grip conditions by getting stronger.
Now, will all this grip training actually protect you from aging, type 2 diabetes, osteoarthritis, and early all-cause mortality? Maybe, maybe not.
But it—and the muscle and fitness you gain doing all these exercises—certainly doesn’t hurt.
How’s your grip? How’s your handshake? How long can you hang from a bar without letting go?