In academic writing, the ability to refute an argument is a cornerstone of logical and critical thought, as well as an essential persuasive tool. Learn more through a comprehensive definition and examples, then put your new expertise to the test with a quiz.
The signs and symptoms of acute coronary syndrome, which usually begin abruptly, include the following: Chest pain (angina) or discomfort, often described as aching, pressure, tightness or burning. Pain radiating from the chest to the shoulders, arms, upper abdomen, back, neck or jaw. Nausea or vomiting. Indigestion.
Prev Next. The dark spots that form around acne blemishes result from a condition called postinflammatory hyperpigmentation. Sometimes they're fairly light and unnoticeable, and sometimes they're large dark marks. This condition can also be caused by excessively dry skin.