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

How Personalizing CPR May Help Save More Lives

Credit: iStock When someone goes into cardiac arrest, their heart stops beating and can’t pump blood to the brain or the rest of the body. Ventricular fibrillation (VF) is a form of cardiac arrest that occurs when the chambers (ventricles) of the heart that usually efficiently pump blood instead begin to quiver (fibrillate) in an … Continue reading How Personalizing CPR May Help Save More Lives

For the Love of a Dog

Apollo Archimedes' love for his human may also have boosted her health. Credit: Jessica Taylor During February, thoughts of love and relationships are in the air as Valentine’s Day approaches. Chocolate hearts pepper both television ads and candy bowls for good reason: The heart has long been a symbol of many forms of love. Physiology … Continue reading For the Love of a Dog

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

Horror-ibly Wrong Physiology in Scary Movies

Filmmakers have a history of making a few common mistakes in horror movie physiology. Credit: iStock Horror movies have been thrilling fans since the late 1800s, and research has shown that people who watched a horror film had a spike in white blood cells—a basic and important part of the immune system—in response to the … Continue reading Horror-ibly Wrong Physiology in Scary Movies

Probiotics for Gout, New Therapies for Heart Disease and More Discussed at APS Research Conference

The number of people who develop long-term health problems such as obesity, high blood pressure and kidney disease increases every year. Because these chronic conditions affect so many, it is important to better understand what causes them. International scientists who study the kidneys, heart, blood vessels and other organs recently gathered to discuss the relationship … Continue reading Probiotics for Gout, New Therapies for Heart Disease and More Discussed at APS Research Conference

Breathe Deep to Explore the Heart’s Physiology

Credit: iStock Breathe in, breathe out. You may have heard that deep breathing techniques are good for your health because they can help you relax and manage stress. You may not know that they are also useful teaching tools for learning about cardiovascular physiology—the study of how the heart and blood vessels work. Breathing—particularly deep … Continue reading Breathe Deep to Explore the Heart’s Physiology

Heff Peff: When Filling the Heart Fails

Credit: iStock Heart failure is a common disease in which the heart can’t pump enough blood to meet the demands of the body. Many people may have heard of heart failure that prevents the heart from contracting properly or pumping enough blood. The measure most commonly used to calculate how well the heart contracts is … Continue reading Heff Peff: When Filling the Heart Fails

How Our Body Stays Cool in the Heat and What Changes as We Age

In the past several decades, heat waves have been occurring more frequently, with a recent major heat event breaking temperature records in Europe. When people don’t have access to air conditioning, fans or simply a shady spot, the extremely high temperatures can be dangerous, especially for the elderly. While young adults are more able to … Continue reading How Our Body Stays Cool in the Heat and What Changes as We Age

Watermelon: A Tasty Summer Treat That’s Good for Heart Health

Summertime means warm weather, and with increasing temperatures come backyard barbeques and potluck celebrations. No summer cookout is complete without the “essential” foods, and watermelon is a favorite for many of us. The juicy red fruit is tasty and refreshing and may even be good for our health. Watermelon is a whopping 92 percent water. … Continue reading Watermelon: A Tasty Summer Treat That’s Good for Heart Health