Anxiety was once considered a natural human trait.

Anxiety is often viewed as a modern issue, but it has existed for centuries. The word itself comes from the ancient Greek term ang, meaning burdened or troubled. In the Bible, anxiety is described as the fear of God's wrath, and in 1844, the Danish philosopher Soren Kierkegaard suggested that anxiety stems from our awareness of the freedom and responsibility that come with making choices. This idea led to the belief that anxiety is a normal and even necessary part of human life, influencing many existential philosophers like Martin Heidegger and Jean-Paul Sartre, who built on this view in their theories.

Sigmund Freud, in the early 20th century, shared a new idea about anxiety. He thought that anxiety is a sign of deeper problems, like painful memories or past traumas that we try to forget. When we don't deal with these issues, they build up and make us feel anxious. Freud believed that by finding and confronting the cause of this anxiety, the anxiety would go away. This idea changed the way people started to think about anxiety.

The Rise of Anxiety in Modern Society

Anxiety was once considered a normal part of life, but over time, it became seen as something that needed to be fixed. Sigmund Freud's ideas on anxiety became popular after World War II. In 1947, the term "anxiety" spread widely, and filmmakers like Alfred Hitchcock and Woody Allen started featuring anxious characters in their movies. Bands like the Rolling Stones also wrote songs about housewives using Valium to cope. Today, a simple search for "anxiety" brings up millions of results, showing how much people talk about it, yet there's still confusion about what anxiety truly means.

The criteria for diagnosing anxiety disorders keep changing.

Anxiety is something everyone experiences, but it becomes a disorder when it reaches certain levels. Psychologists and psychiatrists diagnose anxiety disorders using a guide called the Diagnostic and Statistical Manual (DSM). The DSM, first published in the 1950s, originally categorized mental disorders into psychosis and neurosis, with anxiety falling under neurosis. In 1980, the DSM-III divided anxiety into types like Generalized Anxiety Disorder (GAD) and panic disorders. By 1994, the DSM-IV expanded further, adding conditions like post-traumatic stress disorder (PTSD) and specific phobias. The important point is that the criteria for diagnosing anxiety disorders have changed and continue to evolve.

Psychologists diagnose anxiety disorders by comparing a person's symptoms to a checklist from the DSM (Diagnostic and Statistical Manual of Mental Disorders). If enough symptoms match, a person may be diagnosed with an anxiety disorder. There are many types of anxiety disorders, and the guidelines for diagnosis keep changing. While some people argue that the DSM oversimplifies complex conditions and labels people, it also helps people get the treatment, insurance, and support they need. But why do some people develop anxiety disorders while others don't? Why do some people go through traumatic events without problems, while others develop PTSD? Research shows three main reasons:

1. Genetics: Anxiety disorders can be passed down through families.
2. Personality: How someone deals with stress and uncertainty can affect their risk.
3. Environment: A person's life experiences and upbringing can also play a part.

We all have strong instincts to respond to threats.

Wild animals are constantly on guard for threats, as even a simple search for food can be dangerous if they face a predator. Physiologist Walter Cannon's fight-or-flight theory, developed in the early 20th century, explains how animals respond to danger by either freezing, fleeing, or fighting back. Humans share these survival instincts. For instance, when you encounter a threatening dog or a tense situation with a colleague, you may instinctively want to run or stand up for yourself. This is part of the body's natural response, where the sympathetic nervous system increases heart rate and breathing to supply more energy to muscles while reducing blood flow to areas like the gut, skin, and limbs.

Our bodies react quickly to danger by releasing adrenaline, which helps us either fight or flee. We recognize threats mainly through experience, like when a rabbit remembers being attacked by a bobcat at a specific watering hole and becomes cautious there in the future. Humans are even better at detecting danger because we can learn not only from our own experiences but also from others. For example, seeing someone get mugged can make us wary of that area in the future, and warnings from others, like parents telling children about fire or strangers, help us stay safe. While these survival systems are crucial for protection, sometimes they can overreact to situations that aren't truly dangerous.

Anxiety disorders keep you overly alert to potential dangers.

People with anxiety disorders feel like they're always on edge as if danger is everywhere. For example, someone with arachnophobia might think they see a spider even when it's not there, or a person with social anxiety might feel like every social situation is full of potential embarrassment. This constant feeling of threat keeps their mind and body in a state of high alert, triggering stress hormones like adrenaline and cortisol. As a result, their bodies are always ready to react to danger, whether it's real or imagined.

People with anxiety disorders often have trouble telling the difference between real dangers and things that aren't really dangerous. This causes them to react strongly to situations that don't actually threaten them. They tend to worry a lot about things going wrong and doubt that they can handle problems if they happen. This constant worry can be very upsetting, so they might avoid situations that make them anxious. For example:

• Someone afraid of heights might avoid tall buildings.
• A person with social anxiety might only hang out with people they know well.

People with generalized anxiety disorder (GAD) don't have just one fear-they worry about many things. Constantly worrying becomes a way to avoid feeling uncomfortable. This makes it hard to look at their fears clearly or challenge them. Although avoiding anxiety triggers can bring temporary relief, it can also make their lives smaller. Without facing their fears, those worries just get bigger.

Fear and anxiety are feelings we are aware of.

Scientists have learned a lot about how the human brain works by studying animals. For example, when animals like rats freeze or attack in response to danger, we call this a "fear response." This might make us think that animals feel fear like humans do. However, the key difference is that fear in humans is a conscious emotion, something we feel and think about, while animals' reactions are automatic survival instincts controlled by unconscious brain processes. These instinctive responses can happen without the animal feeling fear. In humans, fear and anxiety are created by conscious thoughts.

Our minds take in what we see, hear, and feel, and make sense of it. For instance, when we feel fear, like spotting a snake, our body reacts quickly. But that's just the beginning. Our attention focuses on what we're experiencing, and our memory helps us understand it.

• Semantic memory: Helps us recognize the snake and know it's dangerous.
• Episodic memory: Connects the snake to past experiences or imagined results, like worrying about being bitten or remembering a similar time.

At this point, our mind labels what we're feeling as fear or anxiety. If researchers only studied animals, they wouldn't fully understand human emotions. It's important to know the difference between survival reactions and emotions, especially when treating anxiety.

Cognitive-behavioral therapy effectively treats anxiety.

Freud's old approach to therapy focused on understanding anxiety by talking about a person's past, with a therapist listening and taking notes. Today, most anxiety treatments use cognitive behavioral therapy (CBT), which looks at how people think and behave right now, instead of focusing on past experiences. CBT helps people recognize and change harmful beliefs that cause anxious behaviors and also works on changing the behaviors themselves. These therapies often include techniques like gradual exposure to fears to help people face them. In short, modern treatments focus on changing how we think and act in the present to manage anxiety.

Exposure therapy works by helping people face their fears step by step, like getting back on a horse after falling off. For example, if someone is afraid of elevators, a therapist might start by showing them pictures or having them think about elevators before encouraging them to actually ride in one. Repeated exposure helps them realize there's no real danger, and their fear fades. This method is also useful for people with Generalized Anxiety Disorder (GAD). It helps them spot their triggers and worries, and then teaches them to challenge unrealistic thoughts and replace them with more reasonable ones, which reduces the power of their anxiety.

Exposure therapy works well, but it has its limits.

Exposure therapy is effective, with a success rate of about 70%, but it has some drawbacks. The improvements you make in therapy might not always transfer to real-life situations. For example, you may practice entering an elevator in a therapist's office, but still feel scared when facing a real elevator. Also, the effects of therapy can fade, especially after a new traumatic experience, like a car accident, or through something called spontaneous recovery, where old fears return over time. While exposure therapy works well, it's not perfect and has its limitations.

In an experiment, a scientist weakened the dogs' learned response by ringing a bell without giving them food. However, after a break, the dogs started salivating again when they heard the bell, showing that their brains had returned to their original association. This highlights a challenge in exposure therapy: it can only break associations we are aware of, but most memories are hidden in our unconscious mind. To make therapy more effective, therapists can help clients face their fears in different situations so that the treatment works in various real-life scenarios.

Enhance the Effectiveness of Exposure Therapy

After a therapy session, a lot of processing happens in the following hours. If those hours are stressful or busy, the progress made in exposure therapy might be lost. One simple solution is to take a nap, as sleep helps the brain process and strengthens the therapy. Additionally, combining exposure therapy with short-term medication, like cortisol, has been shown to reduce anxiety during sessions. These methods can boost the success of exposure therapy, but what if there's a way to completely erase negative memories and associations from the brain?

Memories can be recalled and updated with new details.

In the movie Eternal Sunshine of the Spotless Mind, a couple tries to erase each other from their memories after a breakup, thinking it will help them move on, but they end up losing important parts of themselves. This idea of wiping memories makes people uneasy and is considered almost taboo in psychology. For example, when scientists discovered a way to erase traumatic memories in rats, it caused a big reaction. They made the rats associate a loud noise with a shock, causing the rats to freeze when they heard it. However, by injecting a substance into a part of the brain, they erased the fear memory, and the rats no longer reacted to the noise as if it never happened.

Researchers have suggested that a similar method could be used on humans, but this idea has faced a lot of criticism. One psychologist argued that wiping out memories of trauma could lead to history repeating itself, like events such as the Holocaust. Although painful, memories of past tragedies are important for understanding history. While the idea of changing our memories is unsettling, it's worth noting that many psychological treatments already affect how we remember things. For example, psychoanalysis helps bring out forgotten memories, and cognitive therapy helps us view past experiences in a new way.

The Flexibility of Memories

Memories are not permanent; they can change over time. Studies show that when we remember something, the memory can be altered with new information. This can be helpful for therapists trying to treat traumatic memories. However, completely removing memories is difficult. Strong traumatic memories are hard to erase, even when blocking certain brain processes. If we can accept the idea of changing memories, new scientific research could work alongside traditional therapies, especially for trauma.

Active coping strategies assist in controlling anxiety.

Many people live with anxiety but still enjoy full, active lives by using different coping strategies to manage their feelings. Research by George Bonanno shows that having a range of active ways to cope, like briefly stepping away from uncomfortable situations, helps people stay resilient. For instance, someone who feels anxious at a party might take short breaks to recharge, which allows them to handle the event better. After major stressful events, like the 9/11 attacks, some people broke out of overwhelming news cycles by spending time with friends or returning to work, which helped them feel more in control. Overall, using active strategies can make it easier to manage anxiety and stay balanced.

Breathing exercises and meditation have become popular ways to manage anxiety. When we're anxious, our breathing speeds up, which makes us feel even more tense. Taking slow, deep breaths helps us feel calmer right away. Meditation also helps by teaching us to focus on specific sensations or objects, which pulls us away from racing thoughts. Mindfulness, a type of meditation, encourages us to notice our surroundings, thoughts, and feelings without judgment. Most importantly, meditation helps us not take our thoughts too personally, making anxiety feel less overwhelming. Different techniques work for different people, so it's important to find what's best for you.