Credit: iStock Our heart tirelessly pumps blood through the body to nourish our tissues with oxygen and nutrients and to remove waste. The human heart has four chambers: the two upper chambers are the left and right atria and contract first. The two bottom chambers, called the left and right ventricles, contract second. The right … Continue reading Spotlight On: Heart Attack
Heart Disease
Spotlight On: Stroke
Credit: iStock Every year about 800,00 people living in the U.S. have a stroke. Stroke is a public health concern that costs the U.S. billions of dollars and remains one of the leading causes of death. A stroke is sometimes called a “brain attack” because it interferes with oxygen and glucose (sugar) delivery to the … Continue reading Spotlight On: Stroke
Physical Inactivity: We Got To Move It, Move It
Credit: iStock Did you know that some data suggest physical inactivity increases your risk of dying from any cause more than smoking? Although this argument is still debated, in theory, you could go for a run and have a cigarette and be less likely to die than someone who does neither (you still shouldn’t smoke). … Continue reading Physical Inactivity: We Got To Move It, Move It
How Your Body Reacts to Being Stressed Out
Credit: iStock Have you ever felt the weight of an upcoming deadline? Are family or relationship issues a constant worry? If this describes you, know that you’re not alone. According to the American Psychological Association’s “Stress in America” survey, 67% of adults in the U.S. said their stress level has increased during the coronavirus pandemic. … Continue reading How Your Body Reacts to Being Stressed Out
Spotlight On: Heart Failure
Credit: iStock Heart failure is a chronic, progressive condition that leads to decreased heart pumping capacity. This makes it difficult for the heart to pump enough blood to the body to meet its needs. Conditions that cause heart failure include heart disease (no, they are not the same), diabetes and high blood pressure. Those at … Continue reading Spotlight On: Heart Failure
Invisible and Deadly: Small Particles Cause Big Problems for Our Hearts
Credit: iStock Most of us have heard arguments about climate change and how increasing levels of pollution are destroying the Earth and its natural resources. Air pollution, however, has a much more direct impact on us. In particular, tiny particles in the air invisible to the naked eye are causing big problems for our hearts. … Continue reading Invisible and Deadly: Small Particles Cause Big Problems for Our Hearts
COVID-19 and the Heart
Credit: iStock SARS-CoV-2—the virus responsible for COVID-19—is a respiratory virus. When first discovered, the virus was thought to mostly affect the lungs. We now know that it affects many different organs in the body, including the heart. All respiratory viruses, including the seasonal flu, lead to a higher risk of cardiovascular disease. But SARS-CoV-2 appears … Continue reading COVID-19 and the Heart
Can Your Blood Vessels Last Until 100?
Credit: iStock As life expectancy increases in the world, centenarians—people who have celebrated their 100th birthday—have become increasingly common. Scientists now have more data related to changes that accompany aging than ever before. One thing the data show is that cardiac (heart) muscle must stay strong and, most importantly, resistant to fatigue for our heart … Continue reading Can Your Blood Vessels Last Until 100?
What Can Greenland Sharks Teach Us about (a Long) Life?
Credit: Julius Nielsen and Holly Shiels The U.S. just had its birthday, which means it’s been 244 years since the signing of the Declaration of Independence. What if I told you that in the Arctic Ocean, there are sharks swimming around today who were alive in 1776? And before you ask, yes, the very same … Continue reading What Can Greenland Sharks Teach Us about (a Long) Life?
Scientists Are Creating Miniature Hearts to Help Treat Heart Disease
Credit: iStock The heart is responsible for continuously pumping blood throughout your body, which delivers nutrients to your organs and takes away waste. When your heart isn’t working the way it should, the rest of your body can’t function properly either. Unfortunately, heart disease is still the leading cause of death in adults in the … Continue reading Scientists Are Creating Miniature Hearts to Help Treat Heart Disease