Average Temperatures in Florence, Tuscany, Italy. 1  The annual average temperature in Florence, Tuscany, Italy is mild at 14.6 degrees Celsius (58.3 degrees Fahrenheit).  Average monthly temperatures vary by 18.4 C (33.1F) which is a slightly low range.
For the novel, see Heartburn (novel) . Heartburn, also known as pyrosis, cardialgia, or acid indigestion, is a burning sensation in the chest, just behind the breastbone or in the epigastrium, the upper central abdomen. The pain often rises in the chest and may radiate to the neck, throat, or angle of the jaw.
Heartburn is a burning discomfort that is generally felt in the chest just behind the breastbone. The burning sensation results when harsh stomach juices come in contact with and irritate the delicate lining of the esophagus, the tube-like structure that connects the mouth to the stomach.eartburn is caused when acidic stomach juices refluxâor flow backwardâinto the esophagus. This generally occurs when the lower esophageal sphincter (LES)âthe natural valve that keeps stomach acid in the stomach and out of the esophagusârelaxes or is not functioning properly.