Hand tremor: when rhythmic shaking is a warning sign

Hand tremor is a rhythmic shaking caused by an imbalance in the signals sent from the brain to the muscles. While often a temporary reaction to external triggers, it can also serve as an early marker of neurological disorders. Physiological causes and temporary triggers Tremor occurs when the balance between flexor and extensor muscles is disrupted. Normally, micro-tensions in these muscles compensate for each other to keep a limb still, but stimulants or stress can break this equilibrium. Common triggers include: