Aircraft noise can exacerbate the physical damage caused by a heart attack, new research suggests. Researchers at the Department of Cardiology at the University Medical Center Mainz in Germany found that exposure of mice to noise (average sound pressure 72 decibels, peak 85 decibels) for 4 days resulted in increased expression of pro-inflammatory genes in the aorta of the mice.
The researchers found that noise can lead to the adhesion and infiltration of inflammatory cells in blood vessels and heart tissue. If experimental animals were exposed to aircraft noise before myocardial infarction, it would greatly aggravate cardiovascular inflammation and lead to ischemic heart failure. According to the results of animal experiments, if people who have been exposed to noise for a long time suffer from acute myocardial infarction in later life, the condition will be worse.
Cardiologist and noise expert Thomas Muzel pointed out that this is the first translational study of the effects of aircraft noise on acute myocardial infarction, and the results are shocking. There is no doubt that aircraft noise should be regarded as an important cardiovascular risk factor, which is close to the harm of hypercholesterolemia, high blood pressure, smoking and diabetes to the human body.
Many people are fascinated by the corgi’s “bubble butt” and new research shows that the cute dog’s hip has a floating structure, which will float when they jump into the water, especially the butt, so as not to be submerged wet. According to pet experts, almost 80% of the corgi’s buttocks are fat, not muscle fibers, which is why it is called “bubble buttocks”.
Corgis are a popular pet. They are small, cute and loyal, with a body length of up to 30 cm and an adult dog weighing about 13 kg. Corgis have more fat in their hips, due to their short legs and large heads, which lead to more weight distribution on the back of the body. In addition to their abundant rump fat, corgis also have a thick double coat, which increases their buoyancy in water.
Corgis are characterized by their long bodies and stubby legs. In fact, this cute-looking stubby legs are the result of specific human breeding. Today humans have bred 167 different breeds of dogs with unique physical and psychological traits, and corgis are just one of many breeds that have been bred for specific traits. However, this type of breeding is gradually mutating the dogs, some of which have rendered them intolerant of pain. Pet experts remind that many dog breeds today have a high degree of inbreeding, and thus show a variety of genetic defects, such as deformed hip development, impaired immune function, and loss of resistance to fatal diseases such as cancer. Legs are a genetic condition of achondroplasia, or dwarfism.
