Why Grip Strength Unlocks More Gains (FAT GRIPZ) Your weak grip is killing your gains! If your hands give out early, you can’t lift as heavy or get as many reps — and several studies even associate weak grip strength to shorter lifespan. Grip strength matters because it’s a simple, reliable proxy for overall muscle health, nervous-system function, and physical resilience. Here’s a quick grip-strength workout to fix that. Attach Fat Gripz to make the handles thicker, forcing your forearms to work