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
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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