Primary or focal hyperhidrosis may be further divided by the area affected, for instance palmoplantar hyperhidrosis (symptomatic sweating of only the hands or feet) or gustatory hyperhidrosis (sweating of the face or chest a few moments after eating certain foods).
The proverb The proof of the pudding is in the eating dates back to at least the 14th century. 1  The phrase is widely attributed to the Spanish author Cervantes in his novel The Ingenious Gentleman Don Quixote. The phrase is often incorrectly stated as the proof is in the pudding..
There are many different methods of proof, such as direct proofs, proof by contradiction, proof by induction etc, but in general, all they consist of is, initially, a set of statements known to be true, a bunch of logical arguments based on these truths, and then some logical conclusion that follows from the argument.