What Causes Skipped Heartbeats?
Skipped heartbeats are usually premature beats (PACs or PVCs) triggered by caffeine, stress or poor sleep. Learn when they are harmless and when to get checked.
Can Anxiety Cause Chest Pain and Heart Palpitations?
Anxiety can cause chest pain and a pounding heart, but so can heart problems. Learn how they differ, how doctors rule out heart causes and when to call 911.
Why Is My Heart Racing Suddenly?
A suddenly racing heart is often stress, caffeine or dehydration, but can be SVT or atrial fibrillation. Learn the causes, warning signs and when to call 911.
How Long Can an Anxiety Attack Last?
Most panic attacks peak within 10 minutes and ease within 30. Learn typical duration, symptoms, how to tell them from a heart attack and when to call 911.
What Do Heart Palpitations Feel Like?
Heart palpitations feel like pounding, racing, fluttering or skipped beats. Learn what each sensation may mean, common causes and when to see a cardiologist.
POTS Syndrome: Symptoms, Causes and Treatment
POTS causes a sharp heart rate rise on standing, with dizziness, palpitations and fatigue. Learn the symptoms, causes, diagnosis and treatment options.