Asthma, which affects around million Americans, causes reversible narrowing of the airways. People with asthma have hyper-reactive airways that constrict in response to stimuli that usually don't affect people. Inflammation also occurs in the...
Many things can cause a rapid or fast heart rate. Most causes are benign. However, a recurrent rapid heart rate, called tachycardia, should be evaluated by a physician to rule out any potentially dangerous causes. People can try several home...
Hyperthyroidism is an endocrine system disorder in which your thyroid gland, positioned in the front of your neck, produces too much thyroid hormone. Graves' disease, the most common form of hyperthyroidism, often begins in times of stress or...
Your metabolism controls the way your body absorbs and uses energy. A high metabolism will cause you to burn calories quickly and efficiently, while a low metabolism can result in decreased appetite, slow digestion and weight gain. Although many...
The heart is a part of the circulatory system, and is the organ responsible for circulating blood through the vessels to the lungs and body cells. The heart's pumping action can vary in both strength and rate, where stronger, faster heartbeats...
According to the National Institutes of Health (NIH), a rapid pulse or arrhythmia may occur during episodes of anxiety. A normal pulse or heart rate is between 60-100 beats per minute. If an individual has a resting heart rate faster than 100...
Although the heart rate speeds up during exercise, it should gradually return to its normal pace after ending your exercise routine. However, menopause can trigger tachycardia episodes, where the heart rate is faster than normal in the upper,...
A stress attack is also called a panic attack or an anxiety attack. Symptoms of a stress attack can occur at any time, day or night and under any circumstance. The cause of your stress attack can result from real threats to your health and safety...
You're engaged in a heart-pumping treadmill session when suddenly the room seems to spin around you. This dizziness, which may even make you feel nauseous, can keep you from exercising on the treadmill. Understanding why treadmill-related...
In our fast-paced society, stress is practically inevitable. It's normal, and it can be beneficial by forcing you to be organized and motivated, according to the National Institutes of Health. But when stress begins to mount, it can take a toll...
Hyperthyroidism, an overactive thyroid, affects less than 1 percent of pregnant women, the New York Thyroid Center states, but can have devastating consequences. Some symptoms of hyperthyroid that occur in pregnancy are common to everyone with...
It's easy to feel panicked when you experience a fast or irregular heart rate, especially when it's coupled with other symptoms such as feeling lightheaded. Symptoms affecting the heart warrant medical attention, particularly if they happen...
Stress is common for just about everyone who deals with a job, family and responsibilities. Many stress symptoms are emotional, like excess worry and impaired concentration. But stress can manifest itself physically, too. Most have reactions like...
Whether you are seated in a waiting area for a job interview, about to give a big speech or maybe go out on a date, that pounding feeling in your chest is a common experience in stressful situations. The rapid increase in your heart rate comes...
Tachycardia is defined as a faster than normal heart rate; normal being between 60 to 100 beats per minute in a healthy adult at rest. The heart is made up of four chambers, two atria at the top and two ventricles at the bottom. The rhythm of the...
Resting heart rate is the speed at which your heart beats when you’re at complete rest, sitting down and without stress. Recovery heart rate is the speed at which your heart goes back to resting beats after intense activity or exercise....
It is not necessarily that a heart rate, or the number of times your heart beats each minute, of 230 is abnormal during treadmill running, but it is a bit high. Maximum heart rate, or MHR, is a calculation based on your age. For most people, a...