A young woman who was worried about her habit of biting her fingernails
down to the quick was advised by a friend to take up yoga to ease her
nervousness. She did, and soon her fingernails were growing normally.

One day her friend stopped her and noticing her long, groomed nails
asked her if yoga had totally cured her nervousness.

"No," she replied, "but now I can reach my toe-nails so I bite them
instead."