By the start of the twentieth century, Germany and the United States had challenged some of Britain's economic lead. Subsequent military and economic tensions between Britain and Germany were major causes of the First World War, during which Britain relied heavily upon its empire.he British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom.
A heart murmur is an extra or unusual sound heard during a heartbeat. Murmurs range from very faint to very loud. Sometimes they sound like a whooshing or swishing noise. Normal heartbeats make a lub-DUPP or lub-DUB sound.This is the sound of the heart valves closing as blood moves through the heart.Doctors can hear these sounds and heart murmurs using a stethoscope.ometimes they sound like a whooshing or swishing noise. Normal heartbeats make a lub-DUPP or lub-DUB sound. This is the sound of the heart valves closing as blood moves through the heart. Doctors can hear these sounds and heart murmurs using a stethoscope.
If you have HCM, the muscular wall of your heart-the myocardium-becomes thickened, making the heart muscle stiff. This thickening makes it harder for your heart to pump blood out of your heart and around your body.How thick your muscle is, and how much of your muscle is affected, varies from one person to another.f you have HCM, the muscular wall of your heart-the myocardium-becomes thickened, making the heart muscle stiff. This thickening makes it harder for your heart to pump blood out of your heart and around your body. How thick your muscle is, and how much of your muscle is affected, varies from one person to another.