Addiction is defined as a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use, despite harmful consequences. â  It is considered a brain disease because drugs change the brainâthey change its structure and how it works.ource: From the laboratories of Drs. N. Volkow and H. Schelbert. Addiction is a lot like other diseases, such as heart disease. Both disrupt the normal, healthy functioning of the underlying organ, have serious harmful consequences, and are preventable and treatable, but if left untreated, can last a lifetime.
there is a dog from Africa called a Basenji, it doesn't bark, it sorta yodels. and also the visila from south America is said not to bark Please don't listen to all of the smart arses. Deaf dogs bark very little. But all dogs bark.
Barking is one type of vocal communication that dogs use, and it can mean different things depending on the situation. Here are some reasons why dogs bark: Territorial/Protective: When a person or an animal comes into an area your dog considers his territory, that often triggers excessive barking. As the threat gets closer, the barking often gets louder. Your dog will look alert and even aggressive during this type of barking.