What causes a chilling effect?

Asked by: Prof. Alessia Conn  |  Last update: March 3, 2026
Score: 4.4/5 (39 votes)

A chilling effect is caused by the fear of legal or social repercussions, making people self-censor or avoid exercising rights like free speech, often due to vague laws, potential lawsuits, or broad regulations that could lead to penalties, while physical chills come from the body's attempt to warm up from cold or infection via muscle contractions. In a legal sense, it's the deterrence of protected activities by threatening sanctions, while in a physiological sense, it's the body's involuntary shivering to generate heat.

What are chills a symptom of?

Chills are your body's reflex to generate heat, often signaling an infection (like flu, strep throat, UTI) as the immune system fights pathogens, but they can also stem from environmental cold, stress/anxiety, low blood sugar, anemia, or underlying conditions such as hypothyroidism, certain cancers, or autoimmune disorders, and even intense emotional responses. They manifest as shivering, trembling, and goosebumps, and while often paired with fever, can occur without one. 

What is a chilling effect?

The "chilling effect" refers to a phenomenon where individuals or groups refrain from engaging in expression for fear of running afoul of a law or regulation. Chilling effects generally occur when a law is either too broad or too vague.

What are common triggers for chills?

Common triggers for chills include infections (like flu, pneumonia, UTIs), cold environments, intense exercise, low blood sugar, dehydration, anxiety or strong emotions, certain medications, and underlying conditions such as hypothyroidism, with chills often signaling the body's attempt to raise its core temperature by rapidly contracting muscles.
 

What causes random quick chills?

Causes of Chills

Your body temperature can vary for many reasons, such as exposure to cold, a long workout, or sickness. When your core body temperature drops, chills are the body's way of returning it closer to normal. The average body temperature is 98.6°F F but can range from 97 to 99°F.

Surveillance in the UK and The Chilling Effect

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Why do I get waves of chills?

Maintaining our core temperature is one of the body's most basic functions, and when that temperature is off — or when our body thinks it's off — we get the chills. “Chills occur when the muscles contract and relax in order to make heat,” says Rose Taroyan, MD, a family medicine physician with Keck Medicine of USC.

Are chills a symptom of low blood sugar?

Yes, low blood sugar (hypoglycemia) can absolutely cause chills, often alongside sweating, shakiness, and clamminess, as your body releases adrenaline to raise glucose levels, leading to these uncomfortable sensations, and it's a common symptom, especially for people with diabetes. 

When should I worry about feeling chills?

You should worry about chills if they come with severe symptoms like difficulty breathing, chest pain, confusion, a stiff neck, severe headache, or extreme fatigue, or if a baby under 3 months has a fever of 100.4°F (38°C) or higher, as these can signal serious infections or conditions needing immediate care (like 911 or urgent care). Also seek help for persistent chills, worsening symptoms, signs of dehydration, or high fevers (over 103°F/39.4°C) not improving after a couple of days. 

What deficiency causes chills?

Deficiencies in iron, vitamin B12, and folate (B9) are common causes of chills and feeling cold, as they can lead to anemia, reducing oxygen and heat production in the body, while zinc deficiency can affect metabolism and thyroid function, further impacting temperature regulation. Dehydration, low blood sugar (hypoglycemia), and hypothyroidism can also cause chills. 

What are some examples of the chilling effect?

Examples of the chilling effect

  • Whistleblowing. ...
  • Salary discussions. ...
  • Harassment reports. ...
  • Feedback on management. ...
  • Participation in unions. ...
  • Raising mental health concerns. ...
  • Discussing personal lives. ...
  • Expressing social or political views.

What's an example of a chilling effect?

For example, government actions have a chilling effect if people think the government may take action against them because of their speech or associations, so they refrain from such speech or associations out of caution.

What is the chilling effect in psychology?

Chilling Effects occur when the risks surrounding a speech restriction inadvertently deter speech that lies outside the restriction's official scope.

What is the best way to stop chills?

Key Takeaways

Over-the-counter medications, drinking water, getting rest, and warming your body can all help reduce body aches and chills. If you have body aches and chills with a 101° fever that lasts 72 hours or longer, seek out medical care.

What are the two types of chills?

There are two types of chills: internal and external chills.

Is it serious to have chills without fever?

When should I be concerned about experiencing chills without a fever? Seek medical attention for following: If chills last for more than a few days. With chills you are experiencing severe symptoms like chest pain or difficulty breathing, extreme fatigue or unexplained weight loss.

What kind of illness gives you the chills?

Illnesses that cause chills often involve infections like the flu, COVID-19, strep throat, pneumonia, UTIs, or mono, as the body shivers to raise its temperature to fight germs, but chills also signal issues like autoimmune disorders, hypothyroidism, low blood sugar (hypoglycemia), certain cancers, or even severe anxiety/panic attacks, with chills being the body's way to generate heat.
 

What do you crave when your B12 is low?

B12 deficiency can trigger specific food cravings, often for animal products like meat, eggs, or fish, as the body seeks this nutrient, though cravings for sugar and carbs can also occur due to its role in neurotransmitter production. While these urges for nutrient-dense foods are potential clues, cravings are complex and can stem from habits or emotions; clinical testing is needed to confirm a B12 deficiency, which also causes fatigue, mood changes, and neurological issues.
 

Can dehydration cause chills?

Yes, dehydration can cause chills because it impairs your body's ability to regulate its internal temperature, leading to feelings of coldness, especially when your body is trying to cool down or maintain function. Chills, sometimes accompanied by fever, are signs of severe dehydration, as your system struggles with fluid loss. Other symptoms often include a dry mouth, thirst, dark urine, fatigue, and muscle cramps.
 

What do chills tell you?

Chills are your body's involuntary shiver response, telling you it's trying to generate heat to raise its core temperature, often signaling an infection (like flu or pneumonia) where the immune system is fighting germs and preparing a fever, but they can also stem from cold exposure, anxiety, low blood sugar, thyroid issues, or certain medications, indicating your body is adjusting to a perceived or actual cold or stress.
 

Should I go to the ER for chills?

“People in these high-risk categories who experience severe flu symptoms such as fever, chills and body aches should not hesitate to go to the ER if there are no other options,” said Geiderman. Early treatment may help these patients sidestep complications, such as bacterial pneumonia, superinfections and even death.

How do you get rid of full body chills?

To get rid of chills, stay hydrated with warm fluids, get plenty of rest, use light blankets, and consider over-the-counter fever reducers like acetaminophen or ibuprofen, while avoiding heavy bundling or cold baths; however, consult a doctor if chills persist or are severe, especially with confusion or difficulty breathing, as they signal an underlying issue.
 

What illnesses cause chills and fatigue?

Do Not Overlook Sudden Chills and Body Aches

  • 2.1. Viral Infections.
  • 2.2. Mononucleosis.
  • 2.3. Chronic Fatigue Syndrome.
  • 2.4. Autoimmune Diseases.
  • 2.5. Hypothyroidism.
  • 2.6. Tuberculosis.
  • 2.7. Influenza.
  • 2.8. Pneumonia.

What are 5 signs your blood sugar is too low?

Five common signs of low blood sugar (hypoglycemia) are shakiness/trembling, sweating/clammy skin, dizziness/lightheadedness, hunger, and a fast or pounding heartbeat, often accompanied by irritability, confusion, or weakness. These symptoms happen as your body releases adrenaline, and they can develop quickly.
 

Do diabetics get the chills?

Diabetes medications: Insulin and drugs that increase insulin secretion by the pancreas can cause hypoglycemia-related chills. 17 This happens if you have too much insulin and haven't matched it with your food intake or physical activity level.