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
A lever is a simple machine that makes work easier for use; it involves moving a load around a pivot using a force. Many of our basic tools use levers, including scissors (2 class 1 levers), pliers (2 class 1 levers), hammer claws (a single class 2 lever), nut crackers (2 class 2 levers), and tongs (2 class 3 levers). It all depends on where the fulcrum point is as compared to the load point.