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
Lever Systems. The operation of most skeletal muscles involves leverage â using a lever to move an object. A lever is a rigid bar that moves on a fixed point called the fulcrum, when a force is applied to it. The applied force, or effort, is used to move a resistance, or load.a) Mechanical advantage with a power lever. When using a jack the load lifted is greater than the applied muscular effort. (b) Mechanical disadvantage with a speed lever. When using a shovel to lift dirt, the muscular force is greater than the load lifted.