If it is a heart attack, you're more likely to experience chest heaviness with constriction. You may experience pain in the center of your chest accompaning by tingling or pain in the shoulder, arm, jaw, or back. You may also feel anxiety, shortness of breath, nausea, wheezing, coughing, and possible vomiting.ind out here the causes and what to do if this condition occurs. Heaviness in chest can definitely make you feel worried because it's often one of many signs of a heart attack. In a heart attack, however the pressure seems to grow big, restricting breathing and causing some pain in the shoulder as well.
Penguin Endangered. It is no secret that for almost all of the species of penguins out there, the numbers are less than they were just a few decades ago. There are many reasons for this including hunting them for oil, taking their eggs, destroying their natural environment, the weather, and a lack of food supply.
Emperor penguins are truly amazing birds. They not only survive the Antarctic winter, but they breed during the worst weather conditions on earth. Our research aims to learn more about the penguins (how they live, where they go, what they do, and what they need to survive), and how human activities may impact on their lives and survival chances. The emperor is the largest of the 18 penguin species; adults can weigh up to 40 kg at the start of the breeding season. Historically, there were a number of penguin species even larger than emperors weighing perhaps 100 kg! Unfortunately these mega-penguins became extinct several tens of thousands of years ago.