Forget 10,000 steps; check your handshake. Physiologist Arthur Beam reveals the surprising science behind the "Grip Strength Test" in "Get a Grip." Beam explains that grip strength is not just about opening jars; it is a "biomarker" for overall vitality, muscle mass, and neurological function.The book cites studies showing a direct correlation between weak grip and increased risk of heart disease, dementia, and early mortality. As we age, we lose muscle (sarcopenia), and the hands are often the first to show the decline.Beam offers a protocol to reverse this. He details exercises that go...