The experience varies from person to person. Internal tremors are commonly described as jitteriness, shakiness, or a subtle trembling inside the body, and they can be sporadic or near-constant. They often feel more prominent when lying down or resting — an unsettling mismatch between the body's stillness and the internal sensation — and some people notice internal tremors most when waking up, which makes mornings especially hard.
The exact cause isn't always clear. Internal tremors are frequently associated with neurological conditions, anxiety, stress responses, or medication side effects, and they can be challenging to diagnose because it often takes a careful medical evaluation to exclude other causes. In a survey of patients with Parkinson's, MS, and Essential Tremor, internal tremor was a common symptom and was linked to both anxiety and the presence of visible tremor (Cochrane et al., Parkinsonism & Related Disorders, 2015).
Several factors can worsen internal tremors in people with Essential Tremor:
- Stress and anxiety — strong emotional states affect the nervous system and can trigger or amplify the internal shaking.
- Fatigue and poor sleep — insufficient rest makes internal tremors more pronounced, which is especially relevant for those who feel them on waking.
- Caffeine and stimulants — these stimulate the nervous system and can worsen the sensation; cutting back may bring relief.
Telling these two apart matters, because each has different causes and management. Essential Tremor is action-induced — it appears during voluntary movement — while an intention tremor grows as a limb approaches a target, like touching the tip of your nose (NINDS, Tremor; Haubenberger & Hallett, New England Journal of Medicine, 2018).
Many people with Essential Tremor also notice muscle twitches — known medically as fasciculations — brief, involuntary contractions of muscle fibres. These can occur on their own or alongside the internal trembling, adding to the overall sense of movement within the body. They're usually harmless and need no specific treatment unless they become persistent or interfere with daily life. For how clinicians define and measure these tremor types, see what defines a hand tremor.
Research into wearable devices often comes up in tremor conversations, so where does one fit here? Honestly, only partly. Because internal tremor is by definition a sensation with no visible movement, a glove has nothing mechanical to act on when the tremor is purely internal. Where it helps is the visible hand tremor that many people with Essential Tremor have alongside the internal sensation. The Steadi-3 Plus is a battery-free, FDA-registered Class I medical device; a passive magnetic vibration absorber inside it — tuned mass damping — counters the hand's movement mechanically, with no sensors, no electronics, and nothing to adjust. An adult placebo-controlled study found 84% of wearers improved their tremor control versus using no device, and 70% improved versus a placebo glove (Steadiwear, Steadi-3 Plus validation study).
So for a visible hand tremor, a hand tremor device can steady tasks like writing or holding a cup; for the internal sensation on its own, the more useful levers are the sleep, stress, and medical steps below. It steadies the hand — it doesn't treat or cure the tremor.
Living with internal tremors usually calls for a combination of approaches rather than a single fix:
- Medical treatment — beta-blockers and anticonvulsant medications are used where appropriate, guided by a doctor who addresses any underlying cause.
- Diet and supplements — nutrition plays a subtle role; magnesium (for example magnesium glycinate) is sometimes used, though the effect varies between individuals, so check with a healthcare professional before starting anything new.
- Exercise and physical therapy — wrist curls, hand grips, squeezing a stress ball, and dexterity tasks like bead threading build the muscle control and coordination that steady the hands; a physical therapist can tailor a routine.
- Stress management — because stress is such a common trigger, relaxation and mindfulness techniques are a genuine ally in reducing the internal shaking.
Internal tremors are often manageable, but see a healthcare provider if:
- they significantly affect your daily activities and quality of life;
- they worsen or become more frequent; or
- they come with other concerning symptoms, such as weakness, dizziness, or difficulty speaking.
A proper evaluation can identify the cause and rule out anything that needs specific treatment.
