Parcel Select. Parcel Select is an economical choice for large or heavy packages and is the only USPS service that can be used for packages over 108 in girth. Cost is determined based on the distance, weight and dimensions of the mailpiece.
Addiction is a condition that results when a person ingests a substance (e.g., alcohol, cocaine, nicotine) or engages in an activity (e.g., gambling, sex, shopping) that can be pleasurable but the continuation of which becomes compulsive and interferes with ordinary responsibilities and concerns, such as work, relationships, or health.
Dopamine Function and its Effect. Dopamine is a neurotransmitter that is naturally produced in the body. It is present in the regions of the brain that regulate movement, emotion, motivation and the feeling of pleasure. Dopamine stabilizes the brain activity, regulated flow of information to other parts of the brain and controls movement. It plays a major part in addiction.