Generalized anxiety disorder

Definition

GAD is a diagnosable anxiety disorder defined by excessive, persistent worry about a range of everyday things, like health, money, work, family, or small daily tasks. The worry happens more days than not, lasts at least six months, and feels difficult or impossible to switch off.

What separates GAD from ordinary worry isn't the topic. It's the intensity, how long it lasts, how little control a person has over it, and the toll it takes on sleep, focus, and daily life.

Symptoms and key features

Two features sit at the center of GAD: the worry is excessive, and it's hard to control. Around those, clinicians look for a set of physical and cognitive symptoms. A person with GAD usually has several of these, more days than not:

• restlessness, or feeling keyed up or on edge
• tiring easily
• trouble concentrating, or the mind going blank
• irritability
• muscle tension
• sleep trouble, whether that's falling asleep, staying asleep, or sleep that doesn't leave you rested

Worth knowing: GAD often feels physical first. Many people come in for headaches, a tight jaw, a knotted stomach, or constant fatigue long before they'd describe themselves as anxious.

What it looks like

GAD isn't always dramatic. For a lot of people it's a low, steady hum that never fully switches off. Some everyday examples:

• You finish a normal workday and your mind moves straight to the next thing to worry about. There's always a next thing.
• A friend doesn't reply to a text, and within an hour you've pictured several versions of what went wrong.
• You lie down to sleep. Your body is tired, but your mind starts a review of the day, then a preview of tomorrow.
• You handle a genuinely big problem fine, then get stuck for days on a small one, like a phone call you need to make.

What people often confuse this with

Everyday stress and worry. Stress usually has a cause, and it eases when the cause resolves. GAD's worry outlasts its triggers and moves from one topic to the next.

Panic disorder. Panic disorder centers on sudden, intense surges of fear, called panic attacks. GAD is more of a continuous background worry. The two can happen together, but they aren't the same thing.

Depression. Depression and GAD share symptoms like trouble sleeping and concentrating, and they often occur together. Depression centers on low mood and loss of interest, where GAD centers on worry.

OCD. OCD involves specific intrusive thoughts paired with rituals meant to neutralize them. GAD's worry is broader and isn't tied to compulsions.

What research says

GAD is one of the more studied anxiety conditions, and the treatment evidence is solid.

• Talk therapy works. Cognitive behavioral therapy, or CBT, has the strongest evidence. It helps many people meaningfully reduce both the worry and its physical symptoms.
• Medication works. SSRIs and SNRIs are the first-line medications. They're supported by large trials and recommended by clinical practice guidelines.
• Combining them helps some people. For some, a mix of therapy and medication works better than either alone, though responses vary from person to person.
• It tends to be long-running. GAD can come and go over time, which is why follow-up and a long view matter more than a quick fix.

GAD is also common. Large US surveys estimate that roughly 3 in 100 adults have GAD in a given year, and it's diagnosed about twice as often in women as in men.