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?

Fainting, the Brain and the Chilean Miners’ Rescue

The Fénix capsule brought the Chilean miners safely to higher ground. Credit: iStock On August 5, 2010, 33 Chilean miners became trapped 2,300 feet underground when the San José copper-gold mine in the Atacama Desert caved in. Sixty-nine days later, they were rescued when a 21-inch-wide torpedo-shaped container called a Fénix capsule brought the miners … Continue reading Fainting, the Brain and the Chilean Miners’ Rescue

The Healing Power of Nature

Credit: iStock Have you considered that nature is a form of medicine? The ancient Greek civilization expressed its need for nature through its father of medicine, Hippocrates, who said “airs, waters and places” were essential for well-being. You may feel profound relaxation on a beach, but you may not know exactly why you feel that … Continue reading The Healing Power of Nature

Cautious Hope for Long Overlooked Disease

Credit: iStock One year ago, Victoria Gray became the first person in the U.S. to receive a revolutionary treatment for sickle cell disease (SCD). SCD is a genetic disorder in which the red blood cells—the cells that carry oxygen throughout the body—can become shaped like a crescent, or “sickle.” These misshaped cells build up in … Continue reading Cautious Hope for Long Overlooked Disease

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?

Blood Pressure and Alzheimer’s Disease: Healthy Heart, Healthy Brain

Credit: iStock It’s important to monitor your blood pressure and keep it within normal levels to prevent life-threatening conditions such as heart disease and stroke. But you might not know that maintaining a normal blood pressure is also important for brain health and can help reduce the risk of dementia and Alzheimer’s disease. Over time, … Continue reading Blood Pressure and Alzheimer’s Disease: Healthy Heart, Healthy Brain

How Physiologists Are Helping Patients Recover from COVID-19

Credit: iStock The entire world started to shut down earlier this year because of the coronavirus pandemic, and most businesses came to a standstill. The streets are now quiet and face masks commonplace. People are working from home, many parks and beaches are still vacant and the concern over the spread of the new severe … Continue reading How Physiologists Are Helping Patients Recover from COVID-19

Why People with Hemophilia Can’t Stop Bleeding

Credit: iStock When you get a small cut, more than likely, it’s no big deal. The bleeding usually stops in seconds, and you go about your day without really thinking about it. When you get a bigger cut, it may take a little bit longer to stop bleeding, but it eventually does after you put … Continue reading Why People with Hemophilia Can’t Stop Bleeding

Spotlight On: The Heart and Circulatory System

Credit: iStock If you’ve ever heard a heartbeat through a stethoscope, you may have heard a “lub-dub, lub-dub” sound as the blood circulates throughout your body. You might wonder how your heart actually works, what that sound means and why we need our blood to circulate. Your Blood Gets Around Proper blood circulation is critical … Continue reading Spotlight On: The Heart and Circulatory System