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

August 29, 2026

A ketogenic diet outperformed Mediterranean and low-fat diets in several measures of metabolic health during a clinical trial involving people with obesity, prediabetes, and fatty liver disease. All three groups lost about 10% of their body weight, ...
Dogs and humans may have more in common when it comes to aging than scientists realized. Researchers with the Dog Aging Project found that patterns of small molecules in dogs’ blood were linked to longer or shorter lifespans in remarkably similar ...
People with chronic insomnia who used melatonin long term had a roughly 90% higher risk of developing heart failure over five years, according to a large preliminary study. The findings do not prove melatonin causes heart problems, but they raise ...
Frequent micro-awakenings during sleep were linked to higher genetic risk for Alzheimer’s in healthy middle-aged adults who had no symptoms. The discovery raises the possibility that subtle changes during sleep could offer an early warning signal ...
Scientists have identified a protein that acts like a brake on the nervous system’s ability to repair damaged connections. Blocking AHR helped injured nerve fibers regrow and improved movement and sensation in mice with nerve or spinal cord ...
Scientists have created light-activated drugs that helped blind mice perceive light again and restored visually guided behavior without gene therapy, implants, or specialized lighting. Even more intriguingly, two of the most promising compounds ...
A popular vanilla flavoring in e-cigarettes may interfere with some of the earliest steps of human development. In lab experiments, vanillin caused embryonic stem cells to lose their ability to develop normally and pushed them toward forming only ...
Every one of 212 plant-based meat alternatives and drinks tested in the UK contained at least one naturally occurring fungal toxin, though concentrations remained below recommended EU guideline ...
Ultra-processed foods make up a huge share of the American diet, and new research suggests they may carry another serious health risk for men. In a nationally representative study of more than 17,000 U.S. men, those who ate more ultra-processed ...
The belief that huge doses of vitamin C can ward off colds was popularized more than 50 years ago by Nobel Prize winner Linus Pauling. Since then, larger studies have found that vitamin C does not prevent most people from catching a cold, although ...
Scientists created smart nanoparticles that can both illuminate hidden glioblastoma cells during surgery and destroy microscopic cancer left behind afterward. In mice, the treatment prevented recurrence and led to 100% survival at 60 days, though it ...
Researchers discovered a brain-based “brake” that can shut down chronic nerve pain in mice by calming an overactive pain circuit. Targeting this system more precisely could one day lead to powerful pain relief without affecting opioid receptors ...

Latest Headlines

updated 12:56 pm ET