Stouts & Porters. Thereâs very little distinction between a Porter and a Stout, but they do have their differences. Porter is a dark, almost black, fruity-dry, top fermenting style. An ale, porter is brewed with a combination of roasted malt to impart flavour, colour and aroma. Stout is also a black, roast brew made by top fermentation.
Infections and illnesses are amongst the most common causes of temporary muscle fatigue. This is usually through muscle inflammation. Even though recovery is usual, if inflammation is severe (such as a bad bout of influenza), the weakness can last quite a while. This can sometimes trigger chronic fatigue syndrome (CFS).
Determining the cause of muscle weakness involves distinguishing primary weakness from fatigue or asthenia, common conditions that differ from, but often overlap with, muscle weakness.1 Fatigue describes the inability to continue performing a task after multiple repetitions; in contrast, a patient with primary weakness is unable to perform the first repetition of the task.