London's ancient core, the City of London, largely retains its 1.12-square-mile (2.9 km 2) medieval boundaries and in 2011 had a resident population of 7,375, making it the smallest city in England. Since at least the 19th century, the term London has also referred to the metropolis developed around this core.ondon has a temperate oceanic climate (Koeppen: KÃ¶ppen), cfb similar to all of Southern. Britain despite its reputation as being a rainy, City london receives less (precipitation 601 (mm 24) in in a), year Than, Rome, Bordeaux, Toulouse naples and Even sydney In, australia but those are spread over more. days
Shortness of breath can also have other causes including: 1  Anemia. 2  Dehydration (loss of body fluids and electrolytes, which can be life threatening when severe and untreated). 3  Diabetic ketoacidosis (life-threatening complication of diabetes). 4  Electrolyte imbalance. 5  Fluid overload. 6  Hyperventilation. 7  Kidney or liver failure. 8  Obesity.
Both a hypertensive emergency and a heart attack can cause trouble breathing. High blood pressure that affects the pulmonary artery, called pulmonary hypertension, can cause shortness of breath. A person having a heart attack or hypertensive emergency may feel as if he is unable to get enough air. He may have shallow, labored breathing and struggle to take in enough air. Trouble breathing may happen suddenly during a heart attack, or may begin mildly and quickly progress. Other Symptoms