Laughter: What is it for and How Many Types of Laughter Are There?

There are few things that leave a better feeling than truly laughing. Traditionally associated with well-being and comfort, laughter is an element that has always been part of our way of acting and is an emotional expression that we share with other species such as chimpanzees.

But although we generally laugh when we feel happy and full, we can also laugh out of nervousness, and even in a cynical and false way at something that hurts us, angers us, or disgusts us. In reality, we can laugh about many things and in very different ways. And although it is something we see and experience very often, it is worth asking What is laughter? what is it for? how many types are there?

Laughter is a universal human behavior that transcends cultural and linguistic boundaries, serving as a powerful social signal and expression of joy, amusement, and camaraderie. In this article, we embark on a journey to unravel the science and psychology of laughter, shedding light on its origins, functions, and profound effects on individuals and society.

Evolutionary Origins of Laughter

Social Bonding and Communication

Laughter is deeply ingrained in human evolution, with roots tracing back to our early ancestors. It likely originated as a form of social bonding and communication, signaling safety, camaraderie, and shared understanding within groups. Similar to other social mammals, humans use laughter to reinforce social bonds, diffuse tension, and navigate complex social dynamics.

Play and Pleasure

Laughter is intricately linked to play behavior, serving as a hallmark of enjoyment and pleasure. From childhood playfulness to adult recreational activities, laughter accompanies moments of lightheartedness and fun, enhancing subjective well-being and fostering positive social interactions. Evolutionarily, laughter may have evolved as a mechanism to reinforce behaviors associated with play, cooperation, and social cohesion.

Laughter: what is it?

What we understand by laughter is the union of a set of oral and facial movements that we perform at the same time as we emit. Laughing involves an alteration of different systems such as the respiratory system (air intake becomes irregular while laughter lasts) and cardiac, which are stimulated by this action, while a total of around fifteen facial muscles contract and dilate.

Blood flows to the face, reddening it to a greater or lesser extent, and if the laughter is sincere and strong it is possible to tear or even experience gastrointestinal disturbances. Regarding the emission of sound, we emit a chain of sounds of the same tone that repeats every 210 milliseconds.

Laughter is a physiological response that occurs as a reaction to external or internal stimulation. It is a reaction to stimulation that helps us discharge the energy caused by certain generally emotional aspects. What exactly causes laughter is something analyzed and discussed, with differences depending on the type of emotional reaction that causes it.

Laughing is not something unique and specific to humans, but has also been reflected in other primates, dogs and even rats. It generally arises in moments when the subject feels well-being and enjoys the situation in which he finds himself at the moment, the content of the interaction or aspects inferred from his own or others’ behavior.

What is Laughter For?

Laughter, though often perceived as just a reaction to something funny, serves many important functions. From psychological to physiological effects, laughter plays a key role in our overall well-being.

1. Social Bonding

Laughter is a powerful tool for social connection. It often occurs in group settings, helping people bond, establish rapport, and strengthen relationships. It’s a way of signaling that we are approachable and that we share common ground with others. Shared laughter helps in building trust and creating a sense of belonging, which is essential for healthy social interactions.

2. Stress Relief and Relaxation

Laughter triggers the release of endorphins, the body’s natural “feel-good” chemicals. This not only boosts mood but also helps to reduce stress and alleviate physical tension. After a good laugh, many people feel more relaxed, and studies have shown that laughter can lower levels of cortisol, the hormone associated with stress.

3. Physical Health Benefits

Laughing doesn’t just feel good; it’s also good for you. Laughter can boost the immune system by increasing the production of immune cells and antibodies, helping to fight off illness. It also promotes better blood circulation and increases oxygen intake, which in turn helps your heart and lungs function better.

4. Mental Health Benefits

Laughter has been shown to reduce anxiety and depressive symptoms. It fosters a more positive outlook on life by allowing people to momentarily escape from their worries and immerse themselves in joy. This temporary relief from negative emotions can provide mental clarity and help individuals cope better with difficult situations.

5. Cognitive Function and Creativity

Humor and laughter can boost cognitive abilities, including memory and problem-solving skills. Laughter helps in improving creative thinking by encouraging individuals to view situations from different perspectives, breaking mental barriers and encouraging out-of-the-box thinking.

6. Pain Relief

There’s an interesting phenomenon known as the “pain-relief” aspect of laughter. When we laugh, the brain releases endorphins, which can help in reducing the perception of pain. Studies have shown that laughter can provide temporary relief for certain types of physical pain, making it a natural form of pain management.

Types of Laughter

Not all laughter is the same. Depending on the situation, the context, and the underlying emotion, laughter can take on many different forms. Here are some of the most common types of laughter:

1. Genuine Laughter (Duchenne Laughter)

This is the “real” kind of laughter — the kind that happens when something truly funny, joyful, or surprising occurs. It’s characterized by the engagement of the eyes, which crinkle at the corners, and a full, uninhibited expression. Duchenne laughter is spontaneous and reflects true happiness or amusement. It is named after the French neurologist Guillaume Duchenne, who identified the facial muscles involved in genuine laughter.

2. Nervous Laughter

Nervous laughter happens when a person laughs out of discomfort or anxiety, rather than amusement. This type of laughter is often seen in stressful or awkward situations, such as during a job interview or when caught in an embarrassing moment. While the individual may not be genuinely amused, the body often responds with laughter as a way to cope with emotional tension.

3. Polite Laughter

Polite laughter occurs when someone laughs to be courteous, even though they may not find the situation genuinely funny. It’s often used in social interactions to show that the person is engaged and respectful, even if they are not particularly amused. Polite laughter may sound more controlled and lacks the spontaneity of genuine laughter.

4. Contagious Laughter

Laughter is highly contagious. When one person starts laughing, others are often compelled to laugh along, even if they don’t know why. This type of laughter is typically a social response, where the act of laughing spreads among a group. The contagious nature of laughter can create a sense of unity and shared joy, even if the source of laughter is not immediately clear.

5. Laughing at Someone

This form of laughter occurs when one person laughs at another, often in a mocking or teasing manner. It can be done in good-natured fun or with malicious intent. While it may seem harmless in some cases, laughing at someone can be harmful, especially if it leads to feelings of shame or humiliation for the person being laughed at.

6. Sarcastic Laughter

Sarcastic laughter involves laughing in a way that’s meant to convey the opposite of joy or amusement. It is often used to express irony or contempt, where the person is making fun of a situation, another person, or themselves. Sarcastic laughter is not a sign of genuine happiness but rather a way of expressing dissatisfaction or mockery.

7. Cynical Laughter

Similar to sarcastic laughter, cynical laughter involves an element of distrust or disdain. It may occur when a person has lost hope in a particular situation or belief and expresses their disillusionment through laughter. This form of laughter is often characterized by a sense of hopelessness or resignation.

8. Self-Deprecating Laughter

This occurs when a person laughs at their own expense, often as a way to make light of their own flaws or mistakes. Self-deprecating laughter can be a coping mechanism to deal with feelings of insecurity or embarrassment, but it can also be a way to appear humble or endearing to others.

9. Ticklish Laughter

Ticklish laughter is a response to physical tickling, where the body involuntarily reacts with laughter due to the stimulation of certain sensitive areas, typically on the sides, feet, or underarms. While it may appear playful, ticklish laughter is often accompanied by a lack of control over the body’s reactions.

10. Laughing for No Reason

Sometimes, people laugh without any apparent trigger, often in the form of spontaneous bursts. This type of laughter can happen when people feel particularly happy or euphoric for no specific reason. It may also happen when someone is in a relaxed state and enjoying their surroundings.

11. Manic Laughter

Manic laughter is often linked to mood disorders like bipolar disorder, where an individual may laugh excessively and inappropriately due to a heightened state of arousal or agitation. This type of laughter is typically accompanied by other manic symptoms, such as racing thoughts or increased energy.

Why Do We Laugh?

Laughter is a complex human behavior that has evolved for both physiological and social reasons. The ability to laugh is deeply ingrained in our biology, and it serves multiple functions, from improving physical health to fostering connections with others. Laughter is often a response to something that is perceived as safe or non-threatening, helping people relax in social situations and release pent-up stress.

Furthermore, laughter has been shown to activate brain regions that control positive emotions and reduce anxiety. It’s also a way to communicate emotional states without using words, making it an essential tool in human social interactions.

Psychological Benefits of Laughter

The psychological benefits of laughter are vast. It can:

• Improve mood: Laughter activates the brain’s reward system, leading to the release of dopamine and other “feel-good” chemicals.
• Reduce tension: Laughter can relieve physical and mental stress, lowering blood pressure and reducing muscle tension.
• Promote social connections: Laughter strengthens relationships by creating shared moments of joy and comfort.
• Enhance resilience: Laughter helps individuals bounce back from stressful or difficult situations, providing emotional fortitude.

Brain alterations during laughter

The neurological pathways that are activated during laughter can be multiple depending on the type of laughter being emitted the emotions they awaken or the sincerity with which they are emitted.

If laughter is generated due to an external stimulus, such as a conversation, it is first detected by Wernicke’s area of ​​the left parietal to later connect with the hippocampus, basal ganglia and limbic system (in which the emotional significance of the event is evaluated). which will generate laughter). The brain reward system synthesizes and releases a torrent of dopamine if the information is valued as positive and original.

Endorphins and oxytocin are also generated, which explains the sensations of relaxation and fullness typical of sincere laughter.

In this way, we can generally say that when it comes to laughing, the limbic system and its connection with the prefrontal cortex (which regulates social stimuli and the inhibition of emotions and contributes to information processing) are of great importance. as with the basal ganglia (especially the nucleus accumbens) and in general the brain reward circuit. The primary motor and premotor cortex are also linked, although in this case laughter is usually voluntary and forced. Finally, the autonomic nervous system the responses that produce redness and watering.

Functions and benefits of laughter

We have talked about what laughter is and brain structures that are involved in it, but, Is it beneficial to us? What is the function of laughing?

The answer to the first question is yes, due to the different functions and advantages of laughing.

1. Allows the release of energy caused by emotions

We can imagine laughter as an explosive reaction, which arises more or less suddenly. The movements performed allow emotions to be externalized and reduce the level of internal tension that they generate on the body. This is true with both positive and negative emotions.

2. Causes physical and psychological activation

Although the previous point refers to allowing energy to be released, the truth is that. Another function of laughter is to cause an increase in one’s own activity. Laughing tends to clear our minds and recharge our energy reserves, improving our mood and prompting us to act.

3. Reduces stress and pain

Laughing has been shown to increase dopamine and oxytocin levels, as well as that this action generates a significant decrease in the level of cortisol in the blood. In this way, laughter helps reduce the level of stress and anxiety. Likewise, it reduces the level of perceived pain.

4. Improves our health

One of the many benefits of laughter is the fact that it improves our health by improve the functioning of the immune system and oxygenation capacity stimulate our heart rate and reduce blood pressure.

5. Function of adaptation to the social environment

Laughing is an act of communication that human beings and most species that show the ability to do so use as a bonding mechanism. It is an action that facilitates social interaction and connection with others, an enhanced aspect because being contagious facilitates the same emotional state in others. In addition, hormones are released that make it easier to feel good and close to the environment with which we laugh.

Among the social functions of laughter we find the fact that it allows us to get closer and encourage belonging to a group, as well as reduce tensions between its members. It also allows conflict management in which the existing perspectives in the group on certain realities can be negotiated, shared and contrasted.

6. Generates sexual attraction

Various studies indicate that a sense of humor and the ability to laugh greatly influence whether a person feels attracted to another. Generally, heterosexual men are attracted to women who tend to laugh genuinely while women do it towards men who, although they do not have to laugh often, show a sense of humor and know how to make them laugh.

7. It has defensive functions

Laughter also has a psychic function linked to self-defense. Through laughter, human beings are able to reduce the level of fear and anxiety generated by different external or internal stimuli. It also allows us to relativize situations, and is even linked to the capacity for resilience or overcoming adversity.

It is also an element that usually arises when we become aware of cognitive dissonance as a mechanism to reduce the level of tension that it produces in us.

8. But also offensive

Although laughter is generally linked to positive feelings, we cannot ignore that on many occasions it is also used in an aggressive way to attack or control our peers. This is what happens when laughter is used to mock or laugh at other people. Through laughter, an attempt by the attacker can be established to feel superiority with respect to the attacked and either to dominate the specific situation or to reduce one’s own state of dissatisfaction. This can occur at a conscious or unconscious level.

Different types of laughter

There are multiple classifications when it comes to types of laughter typologies can be made depending on the level of intensity, the function they have or whether the laughter in question is genuine or voluntary.

Technically hundreds of them could be described. A few are highlighted below.

1. Genuine laughter

This is the type of natural and involuntary laughter, caused by stimulation or emotions without there being an objective for its emission. This is the type of laughter that generates important benefits. It is generally linked to happiness or positive aspects.

2. Simulated laughter

It is a laugh that is produced intentionally and voluntarily. Social laughter can be included within this group. It is generally carried out when the person issuing it has a specific objective, be it to belong to the group, generate ties, express displeasure or irony or attack someone.

3. Social laughter

This laughter is usually a subtype of simulated laughter, although it can also occur genuinely. It is about the use of laughter as a communicative element with our peers aimed at expressing approval or appreciation or generating ties.

4. Substance-induced laughter

Some substances, medications and drugs can induce states of happiness, well-being and expansive humor in subjects that can end up causing laughter. It is also possible that they provoke laughter without awakening positive emotions.

5. Pathological laughter

Certain neurological and/or psychiatric pathologies can cause sudden laughter, out of place or without there being a reason for such laughter. They may be laughs that are empty of content, and unless they are accompanied by the relevant emotional reaction, they do not generate health benefits.

6. Laughter caused by tickling

Tickling, the pleasurable stimulation of certain sensitive regions of our body such as armpits, feet, neck or even hands, can generate a reaction in the form of laughter in a large number of people. This type of laughter is special, since the stimuli that cause it are physical. However, it must be noted that they also occur in a context in which we are in contact with other people, generally in a recreational environment (despite the fact that torture is linked).

7. Degrading laughter

This type of laughter fulfills the function of ridiculing another person. It is laughter provoked for a specific purpose, generally being simulated.

8. Nervous laughter

This type of laughter is usually genuine, although not due to pleasant feelings but to the need to reduce the level of internal tension that the person suffers due to nervousness or stress. Basically the subject laughs because he doesn’t know how to react to a situation or what to do next.

Psychological Mechanisms of Laughter

Relief of Tension and Stress

One of the primary functions of laughter is the relief of tension and stress, serving as a natural coping mechanism in response to adversity or discomfort. Laughter triggers the release of endorphins, neurotransmitters known for their analgesic and mood-enhancing properties, promoting relaxation and a sense of well-being. By diffusing tension and promoting emotional regulation, laughter plays a crucial role in maintaining psychological resilience and mitigating the negative effects of stress.

Social Connection and Affiliation

Laughter serves as a powerful social lubricant, facilitating social connection and affiliation among individuals. Shared laughter fosters feelings of camaraderie, trust, and belonging, strengthening interpersonal bonds and promoting group cohesion. Moreover, laughter is contagious, spreading rapidly within social groups and fostering a sense of solidarity and shared identity. By fostering positive social interactions and reducing social barriers, laughter enhances social cohesion and promotes prosocial behavior.

Health Benefits of Laughter

Physical Health

Laughter offers a myriad of health benefits for both body and mind. Physiologically, laughter stimulates the cardiovascular system, increasing heart rate and improving blood flow, akin to light exercise. It also boosts immune function by enhancing the production of immune cells and antibodies, providing a natural defense against illness and infection. Additionally, laughter triggers the release of endorphins and other neurotransmitters associated with pain relief and stress reduction, promoting overall well-being and resilience.

Mental Health

From a mental health perspective, laughter exerts profound effects on emotional well-being and psychological resilience. It serves as a potent antidote to negative emotions such as anxiety, depression, and loneliness, offering a temporary reprieve from life’s challenges and hardships. Laughter fosters a positive outlook on life, promoting optimism, humor, and adaptive coping strategies. Moreover, laughter therapy has emerged as a complementary approach in mental health treatment, offering therapeutic benefits for individuals struggling with mood disorders, trauma, and other psychological ailments.

Cultural and Social Significance

Cultural Variability

While laughter is a universal human behavior, its cultural expression and interpretation vary across different societies and contexts. Cultural norms, values, and communication styles shape the frequency, intensity, and social meaning of laughter within a given culture. What may be considered humorous or appropriate in one cultural context may be perceived differently in another, highlighting the nuanced role of laughter in social interaction and cultural expression.

Social Functions

In addition to its individual benefits, laughter serves important social functions within communities and societies. It fosters social cohesion, strengthens interpersonal bonds, and promotes a sense of collective identity and belonging. Laughter is often intertwined with cultural rituals, celebrations, and communal gatherings, serving as a unifying force that transcends linguistic and cultural barriers. Moreover, humor and laughter play a vital role in challenging social norms, fostering social critique, and promoting social change through satire, parody, and comedy.

Laughter is a multifaceted phenomenon that embodies the essence of human experience, serving as a universal expression of joy, connection, and resilience. From its evolutionary origins as a social bonding mechanism to its profound effects on physical and mental health, laughter transcends cultural and linguistic boundaries, enriching our lives and fostering a sense of shared humanity. By unraveling the science and psychology of laughter, we gain deeper insights into the intricate interplay between biology, culture, and social behavior, illuminating the profound significance of laughter in shaping human relationships and society at large.

FAQs About Laughter

What is the purpose of laughter?

Laughter serves various purposes, including social bonding, stress relief, physical health benefits, and emotional well-being. It helps people connect, relax, and feel happier.

How many types of laughter are there?

There are several types of laughter, including genuine laughter, nervous laughter, polite laughter, contagious laughter, sarcastic laughter, and more. Each type serves a different social or emotional function.

Why is laughter contagious?

Laughter is contagious because humans are social creatures and often mimic the behavior of others. This natural tendency to laugh when others laugh helps to create shared experiences and strengthens social bonds.

What is the difference between genuine and polite laughter?

Genuine laughter is spontaneous and reflects true amusement or happiness, while polite laughter is used to show respect or engage in social situations, even if the person is not actually amused.

Can laughter have health benefits?

Yes, laughter has numerous health benefits, including reducing stress, improving immune function, enhancing blood circulation, and providing temporary pain relief.