Share: Obsessive-compulsive disorder (OCD) is an illness that causes people to have unwanted thoughts (obsessions) and to repeat certain behaviors (compulsions) over and over again.We all have habits and routines in our daily lives, such as brushing our teeth before bed.hare: Obsessive-compulsive disorder (OCD) is an illness that causes people to have unwanted thoughts (obsessions) and to repeat certain behaviors (compulsions) over and over again.
Leverage definition, the action of a lever, a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third. See more. Dictionary.com
Rating Newest Oldest. Best Answer: A lever is an object with a pivot point (fulcrum), used to multiply the force which can be applied to an object in order to lift it. There are 3 classes of lever, all of which can be found in the human body.