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 is a neurotransmitter that is produced by the brains of many organisms, including humans. Like many neurotransmitters, it has several different functions. It plays a critical role in the function of the central nervous system, and it is also linked with the brain 's complex system of motivation and reward.