article_snippet: But this means bad habits can also be passed down through generations.
article_snippet: Vanoosthuyze also settles the debate about whether you should go with, or against the grain.
article_snippet: Scroll down for video .
article_snippet: And when it comes on what not to do, Dr Vanoosthuyze said that some men place as much as 3.3lbs (1.5kg) of force on the blade. '
article_snippet: This is what causes them to sting.