When the thyroid produces too much hormone, it speeds up metabolism and may cause fine, rapid tremors (10–12 Hz). Other signs include weight loss, a racing heartbeat, heat intolerance, and anxiety. Blood tests confirm the diagnosis, and treatment may involve medication, radioactive iodine, or surgery.
5. Medication Side Effects
Several prescription drugs—including some antidepressants, antipsychotics, and asthma medications—list tremors as a side effect. Beta-agonist inhalers, for example, stimulate the nervous system and can lead to hand shaking. If you suspect medication is the cause, consult your doctor before making any changes.
6. Caffeine and Alcohol
Caffeine, a common stimulant, can temporarily cause hand tremors, especially in high doses. Alcohol has a more complex effect: while moderate drinking may reduce tremors temporarily, withdrawal after heavy or chronic use often causes pronounced shaking. Managing intake can reduce these symptoms.
7. Anxiety and Stress
Stress and anxiety trigger the body’s “fight or flight” response, releasing adrenaline and other hormones that may cause tremors. These usually subside once stress levels drop. For chronic anxiety, techniques like meditation, deep breathing, exercise, therapy, or medication may help.
