New! Sign up for our free email newsletter.
Reference Terms
from Wikipedia, the free encyclopedia

Anxiety

Anxiety is a feeling of worry, nervousness, or unease that arises in response to stress or perceived threats. It is a normal and often helpful emotional response that can prepare the body to deal with challenges or danger. However, when anxiety becomes persistent, excessive, or disproportionate to the situation, it may interfere with daily functioning and be classified as an anxiety disorder.

Common symptoms of anxiety include restlessness, rapid heartbeat, muscle tension, difficulty concentrating, irritability, and sleep disturbances. Physical symptoms can also include sweating, nausea, or shortness of breath. Anxiety disorders come in various forms, such as generalized anxiety disorder, panic disorder, social anxiety disorder, and specific phobias, each with its own set of triggers and characteristics.

The causes of anxiety are complex and can involve a combination of genetic, environmental, psychological, and neurological factors. Life events, trauma, chronic stress, or imbalances in brain chemistry may all contribute to its development. Diagnosis is typically made through clinical evaluation, and treatment options include therapy, medications such as antidepressants or anti-anxiety drugs, lifestyle changes, and stress-reduction techniques like mindfulness or exercise.

While anxiety can be overwhelming, it is also highly treatable. Increased awareness, early intervention, and a variety of therapeutic approaches can help individuals manage symptoms and improve quality of life. Ongoing research continues to deepen our understanding of anxiety and enhance treatment strategies.

Related Stories
 


Health & Medicine News

April 17, 2026

Scientists have uncovered a surprising twist in how bacteria share genes—including those that spread antibiotic resistance. Tiny virus-like particles called gene transfer agents (GTAs), once ...
Sparkling water is often seen as a simple, healthy drink—but could it also help with weight loss? New research suggests it may slightly boost how the body processes blood sugar and energy. However, the effect is very small, meaning it’s no ...
A hormone called FGF21 can reverse obesity in mice by activating a newly identified brain circuit tied to metabolism. Surprisingly, it works in the hindbrain—the same region targeted by GLP-1 drugs like Ozempic and Wegovy—but through a ...
Researchers have found a way to make cancer-killing immune cells more powerful and precise. By adding specific signaling components, they boosted the cells’ readiness to attack tumors. Surprisingly, briefly suppressing the cells with a drug before ...
Scientists have discovered that a protein linked to cell death is secretly driving the aging of blood stem cells in a completely different way. Instead of killing the cells, it damages their mitochondria, sapping their energy and weakening the ...
A rogue set of “zombie” immune cells may be driving aging and fatty liver disease by flooding tissues with inflammation. Researchers found these cells accumulate with age and high cholesterol—and can make up most of the liver’s immune cells ...
A massive, nearly 20-year study tracking over 650,000 Americans with irritable bowel syndrome is raising new questions about the long-term safety of common treatments. Researchers found that some widely used medications—including antidepressants ...
New research suggests that aiming for a lower blood pressure target may deliver bigger heart health benefits than previously thought. Using large datasets and simulation models, scientists found that keeping systolic blood pressure below 120 mm Hg ...
A massive Swedish study shows that AI can spot people at higher risk of melanoma using routine health data. Advanced models significantly outperformed basic methods, identifying high-risk groups with striking accuracy. Some individuals flagged by ...
A surprising discovery from high-altitude animals like yaks and Tibetan antelopes could reshape how we treat nerve damage in humans. Scientists found that a genetic mutation helping these animals survive low-oxygen environments also protects and ...
A surprising new clinical trial has revealed that metformin—a cheap, century-old drug widely used for type 2 diabetes—may help people with type 1 diabetes in an unexpected way. While researchers initially hoped it would reduce insulin ...
A lifetime of mental stimulation—like reading, writing, and learning new skills—may help protect the brain as we age. People with the highest levels of cognitive enrichment had a much lower risk of Alzheimer’s and experienced symptoms years ...

Latest Headlines

updated 12:56 pm ET