There are a variety of situations that require a tooth to be restored with a dental crown. The following are the most common: Large filling: When a tooth has a cavity or fracture that involves half the width of the tooth or more, it needs to be covered with a crown. This is because the remaining tooth around the large filling is so weak that it is prone to fracture. Sometimes a large filling that has been in the mouth for a while will need to be replaced with a crown because the tooth shows signs of stress and cracks around the filling.
How marijuana affects the mind. Marijuana reaches the same pleasure centers in the brain that are targeted by heroin, cocaine and alcohol. Depending on the quantity, quality and method of consumption, marijuana can produce a feeling of euphoria â or high â by stimulating brain cells to release the chemical dopamine.
Most of the benefits marijuana provides are related to its psychoactive effects. It is effective for reducing stress by alleviating anxiety, increasing euphoria, and causing users to slightly disassociate from their environment. Marijuana can also help people with low body weight increase their food intake.