Hand Tremors Explained

October 21, 2020

Hand tremors, also known as shaky hands, can interrupt your daily life. Hand tremors can vary in their magnitude, frequency, and progression over time. Your tremor might make specialized movements like threading a needle difficult.  This condition can also be severe and impact many other aspects of life. In some cases, it can even decrease your quality of life. Below, we will dive into the possible causes of hand tremors, the symptoms, and what treatments may be effective.

Contents

Hand Tremors: What Are They?

Symptoms of Hand Tremors

Causes of Hand Tremors

Hand Tremor Treatment

FAQs: Hand Tremors

Hand Tremors: What Are They?

Hand tremors, or shaky hands, may not be life-threatening on their own, but they can still disrupt your life. In some cases, hand tremor may be a signal of neurological issues or degenerative disease. It’s a good idea to seek out your healthcare provider if you’ve suddenly developed or noticed hand tremor.

Although learning more about your health and body on your own is important, an official diagnosis and treatment plan made in conjunction with your doctor is the best course of action to treat hand tremor symptoms.

Symptoms of Hand Tremors

Hand tremors can happen on and off or be constant. Some tremors may occur on their own without associated health problems, but other kinds of tremor may suggest a specific health issue like liver failure or MS.

Symptoms of hand tremor can include the following:

  • Involuntary, rhythmic shaking in the hands and arms
  • Difficulty writing or drawing
  • Issues holding or controlling utensils or cups
  • Trembling in one or both hands
  • Shaking may worsen with movement
  • Tremors may progress over time

Reaching for a glass of water

Causes of Hand Tremors

Below are some of the underlying causes of tremor outlined by the National Institute of Neurological Disorders and Stroke and temporary conditions that may result in shaky hands.

Essential Tremor

Although many people associate tremor with Parkinson’s Disease, essential tremor is eight times more common. Essential tremor or ET causes involuntary, rhythmic shaking that is characterized by action tremor with or without intentional movement.  It can affect almost any part of your body. This condition most frequently occurs in the hands and it’s especially noticeable during tasks like tying your shoelaces or using a utensil.

Although it’s not life-threatening by itself, it can make daily tasks more difficult and inconvenient, depending on the severity. ET can begin at any age but most commonly affects those over the age of 40. Although there isn’t a cure for essential tremor, there are treatments that may help reduce the frequency and magnitude of tremors under the guidance of your healthcare provider.

Parkinson’s Disease

Shaking from Parkinson’s Disease is caused when brain cells controlling movement are damaged. Shaking may start with one hand and spread to the other as the disease progresses. You might also move slowly, have a stooped posture, experience balance issues, or deal with stiffness.

Parkinson’s disease is associated with numerous problems such as poor balance, difficulty swallowing, and stooped posture.Tremors from Parkinson’s occur mostly at rest (resting tremor). In most cases, it disappears during movement but comes back when the limb is resting. Forty six to ninety three percent of patients with Parkinson’s disease also experience postural tremors, a type of action tremor that occurs while maintaining a stance. Tremor is the only symptom of Parkinson’s that might get better on its own and usually reaches a plateau in severity.

Multiple Sclerosis (MS)

Multiple Sclerosis (MS) is a degenerative disease that damages a special coating on your nerves called myelin. A common symptom of MS is hand tremor or shaking in other parts of your body. 25% to 58% of MS patients experience tremor.

Most MS tremors are mild but up to a quarter of MS tremor cases are severe. Tremor is typically associated with ataxia or nervous system degeneration. Besides tremor, ataxia can cause stumbling, coordination issues, and speech problems.

Alcohol Withdrawal

For alcoholics, shaky hands can occur when you quit and begin experiencing withdrawal symptoms. Shaky hands can also occur during excessive alcohol use.

Hand tremors and trembling in other parts of the body can begin after only 10 hours after your last alcoholic drink and last for a few weeks. Detox programs sometimes offer addicts medications to help manage hand tremors and other symptoms of withdrawal.

Liver Issues

When your liver can’t remove toxins from the blood, you might experience a loss of brain and nervous system function, which is known as hepatic encephalopathy (HE). As a result of HE, tremors, muscle stiffness, confusion, impaired consciousness, and personality changes might occur.

Low Blood Sugar

When your nerves and muscles are low on blood sugar or hypoglycemic, your hands may shake. Since your body relies on blood sugar as its main source of energy, hypoglycemia can disrupt your brain’s ability to function properly. It also causes the release of hormones like epinephrine and norepinephrine, which in turn can cause hand tremor, sweating, increased heart rate, hunger, and anxiety.

Medications and Drugs

Prescription drugs and other substances can cause hand tremors which may include the following:

  • Excess thyroid medication
  • Epinephrine and norepinephrine
  • High blood pressure drugs
  • Alcohol
  • Antivirals
  • Antibiotics
  • Antidepressants
  • Stimulants
  • Mood stabilizers
  • Immunosuppressants
  • Asthma medication
  • Seizure medication
  • Cancer treatments

Poisoning and Toxins

Certain exposure to neurotoxins like heavy metals such as lead, mercury, and arsenic can lead to nerve damage and tremor in the limbs. Research is still ongoing to investigate the potentially harmful impact of exposure to environmental toxins, for example, substances and compounds found in industrial waste.

Stroke and Pre-Stroke

A stroke can cause damage to the cerebellum or basal ganglia in the brain, resulting in a tremor. Shaking and trembling can also be a warning sign of a future potential stroke.

Physician comforting a patient

Hand Tremor Treatment

The type of treatment necessary for your tremor depends on the cause. If your doctor determines that your hand tremors are the result of essential tremor, there is no cure. However, there are a variety of pharmaceutical medications and non-pharmaceutical medication treatments available to ameliorate the worst of the symptoms or reduce the magnitude of tremors.

Pharmaceutical Medications

  • Beta-Blockers: Beta-blockers, primarily propranolol, are often the first line of defense doctors use to treat the symptoms of essential tremor. Unfortunately, they can result in unpleasant side effects and patients may develop a tolerance to them after a short time period.
  • Benzodiazepines: An example is clonazepam (Klonopin), which is a prescription drug. They may reduce the amplitude of tremors, but have a risk of addiction and side effects like drowsiness.
  • Anticonvulsants: Anticonvulsants have had medium success in scientific studies and are used as a second line of drugs, sometimes in conjunction with beta-blockers.
  • Botox Injections: Botox can help improve hand and voice tremors, but also may weaken muscles resulting in decreased  strength in the hand muscles and difficulty swallowing.

Surgery

Deep brain stimulation (DBS) is used in cases of severe, drug-resistant essential tremor or patients who can’t tolerate the side effects of ET medication. During this surgical procedure, wires tipped with electrodes are implanted in areas of the brain responsible for tremors. These wires funnel through the neck and connect to a neurostimulator in the chest near the collarbone. This neurostimulator generates and sends electrical signals through the wires to the implanted electrodes to help control the symptoms of essential tremor.

Like other surgeries, DBS presents a risk of side effects. Potential side effects include speech issues, worsening of motor symptoms, depression, and falls.

Focused Ultrasound

During a focused ultrasound, beams of ultrasound (sound waves) are targeted on an area of the brain’s thalamus, which controls motor and sensory signals. The ultrasound waves heat up and burn the targeted part of the brain and destroy the affected tissue. The burn or lesion created by the ultrasound may be able to interrupt the abnormal tremor movements.

Gamma Knife Radiosurgery

Gamma Knife radiosurgery involves sending targeted radiation in the form of a laser beam to the brain’s thalamus, where it destroys tissue responsible for tremor symptoms. However, neurological side effects are possible, like facial sensory loss and other neurological issues. In addition, improvements in tremor as a result of the procedure may fade over time.

Behavior and Lifestyle Changes

Essential tremor can be affected by emotional stress, nicotine, and caffeine. Limiting stimulants and keeping your stress level down by practicing self-care and prioritizing your mental health can help reduce symptoms of ET.

Here are some other lifestyle changes you can make at home according to Hopkinsmedicine.org:

  • Use heavier, sturdier utensils with larger handles for easier gripping
  • Invest in clothing with Velcro or button hooks
  • Use straws for drinking
  • Consider wearing slip-on shoes
  • Complete more difficult tasks when your tremors are less noticeable (this might be in the morning, evening, or afternoon)

Non-Surgical Options

Cala Trio offers a specialized wristband that helps reduce hand tremors in patients with essential tremor. The wristband works by sending electrical stimulation to your brain and disrupting the network responsible for tremor. This non-invasive therapy is customized for your unique tremor pattern and can help reduce the magnitude of your tremors.

You’ll need to talk to your doctor to find out if this revolutionary treatment is right for you. It can be used alone or alongside your essential tremor medications. It’s important to note that it’s not appropriate to use this medical device if you’ve undergone Deep Brain Stimulation surgery because it can interfere with the embedded neurostimulator. Click here for a complete list of safety information.

FAQs: Hand Tremors

If you still have questions about hand tremors, read through the section below to get answers to common queries.

Can hand tremors get worse?

ET symptoms typically worsen over time at a gradual pace. Most only experience mild to moderate symptoms, while others might suffer from more severe effects. As ET worsens, the tremor frequency might decrease but the intensity of tremors may increase. With treatment, these symptoms can be managed.

What’s the difference between Parkinson’s and essential tremor?

According to Harvard.edu, one of the main differences between the Parkison’s tremor is that the shaking is most noticeable at rest. In contrast, essential tremor is usually most noticeable during movement. Both are dysfunctions of signaling in the brain.

Parkinson’s Disease is associated with other health issues and symptoms like a stooped posture and issues with balance. Essential tremor can get worse over time, impacting the quality of life. . Parkinson’s impacts the quality of life and often limits life expectancy.  Who can get essential tremor?

Anyone can get essential tremor, although you’re more likely to get it if you have a family history of the condition. ET can also occur at any age, but onset occurs most often in middle age.