Low blood pressure coupled with a high heart rate is normal when it happens momentarily — like when we stand up — but long-term it could signal a heart rhythm problem.
Bisphenol-A (BPA) is one chemical many Americans don’t want in their plastic bottles and food packaging. But the alternative, found in many “BPA-free” products, may not be much safer. What’s so bad about BPA? Research shows that BPA from plastic containers can leach into food and beverages (and then into human bodies). That’s bad because … Read More
Our hearts rely on perfectly timed contractions to squeeze and refill an average of 100,000 times a day. When the electrical impulses driving this process are not uniform, certain areas of the main pumping chamber of the heart (left ventricle) may contract earlier than others. This reduces the heart’s ability to pump effectively, causing fatigue, … Read More
If your heart isn’t beating at the right rate or rhythm, doctors have several options to help you. Pacemakers and defibrillators take over pacing your heartbeat when heart disease and other conditions play havoc with heart rhythms. Your heart signals Normally, electrical impulses generated in your heart stimulate the heart to contract. This moves blood … Read More
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Traditional pacemakers are implanted under the skin and attached to a wire that is inserted directly into the heart muscle. The device generates a current that travels down the wire to control the heart’s contractions. Complications related to pacemakers are generally related to these wires, known as leads, which can fracture or become infected. Removing … Read More
Sometimes the pathway in the heart’s electrical system is interrupted, which causes changes in heart rate and rhythm. A slow heartbeat can occur because the sinus node, the natural “battery” of the heart, is slow. Other times electrical conduction between the upper and lower chambers of the heart is disrupted. When this happens, the heart … Read More