Because of this, clonidine is often used to treat the symptoms of drug, alcohol, and nicotine withdrawal. Clonidine is beneficial in opiate withdrawal because it treats symptoms that are commonly associated with that condition (watery eyes and nose, diarrhea, irritability).
However, Friction can also be harmful, for example, Rubbing two objects together causing friction causes heat, under the right circumstances it could even cause a fire, so in that case it could be good or bad, when you rub two sticks together to make fire, its good, but lets say your engine in your car is low on oil, the friction in the cylinders will eventually cause the motor to over heat and seize up and then you have engine failure and a large mechanic bill, thats bad,
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: 1  Dry friction resists relative lateral motion of two solid surfaces in contact.kin friction arises from the friction of the fluid against the skin of the object that is moving through it. Skin friction arises from the interaction between the fluid and the skin of the body, and is directly related to the area of the surface of the body that is in contact with the fluid.