Credit: iStock Picture this: It’s a hot summer day, you’ve been at sports practice all afternoon and you know your coach always has the team do conditioning at the end of practice. You and your teammates line up and start to sprint. The finish line is in sight, you are almost there! Finally, you cross … Continue reading Exercise Recovery: Which Body Position Is Best?
Credit: iStock As we get older, our cardiovascular system changes dramatically. Specifically, our blood vessels become stiffer and lose some of their ability to relax. This is known as endothelial dysfunction. Scientists debate and propose many theories about the specific causes of endothelial dysfunction with aging. Recently, telomeres have become a hot research topic. Telomeres … Continue reading Small but Mighty: How Telomeres Could Control Vascular Aging
Credit: iStock Most people know it’s important to stay hydrated (but not too much!) during an intense workout. A sports drink can be an ideal beverage choice, but do you know why? After working out for an hour or so on a hot summer day, you may begin to sweat, get muscle cramps and/or become … Continue reading Sip a Sports Drink to Keep the Electrolytes Flowing
Credit: iStock Cardiovascular disease is the leading cause of death in the U.S. In fact, it has been previously predicted that by 2030, cardiovascular disease will affect more than 40% of the U.S. population. With this in mind, it seems clear that we—as a nation—need to improve our cardiometabolic health! A brief glance at health … Continue reading Hot Tubs: The New Home Treadmills?
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
Credit: iStock If you are reading this, chances are you’re sitting down. Whether working at a desk, relaxing on the couch or commuting by car or public transit, the majority of us sit for the better part of our day. All of that sitting could have some not-so-great effects on our long-term health. We have … Continue reading Vitamin C Might Help Counteract Too Much Sitting
Credit: iStock As kids, many of us had competitions to see how long we could hold our breath under water. It may have seemed like a simple and fun way to compete with our friends, but our bodies were actually doing amazing things to help us stay under water for longer periods of time. Humans … Continue reading Can You Win an Underwater Breath-holding Competition?
Credit: iStock We’ve learned a lot about how SARS-CoV-2—the virus that causes COVID-19—affects our respiratory system. But as we learn more about the virus and its physiological consequences, it’s becoming clear that COVID-19’s effects may go beyond the lungs. With its demonstrated—sometimes long-lasting—effects on the heart and blood vessels, COVID-19 may be just as much … Continue reading COVID-19 Could Spell Long-term Trouble for Heart and Blood Vessels
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
Credit: iStock In a year like no other in our lifetimes, many of us found ourselves putting aside our usual pursuits and thirsting for information on the coronavirus pandemic. I Spy Physiology blog contributors quickly switched gears to keep you informed, including a series of posts covering the physiology of COVID-19 and how it affects … Continue reading 2020’s Most-read I Spy Physiology Posts