To begin with, the brain is divided into four separate lobes, the Occipital, Temporal, Parietal, and Frontal lobes (Parts of the Brain). The Occipital …show more content…
The most technological and common way is the gamma knife. The gamma knife screws into the patient's skull and gives them a high dose of radiation. The elimination of cutting into the skull eliminates a hemorrhage or the loss of blood and the chance of infection. The recovery time of the gamma knife is also shorter than assumed with the minimum of an overnight stay in a hospital. The MRI is an advanced camera, with x-ray technology that allows the doctor to closely examine the inside of the brain and look for irregularities. The MRI has saved many lives by locating tumors within the body. With technological advances, the brain is given more chances of being capable to operate, even if infected by cancer …show more content…
Drugs produce a chemical in the body known as dopamine, also produced when eating, sexual relationships, or anything stimulating. Dopamine controlls emotions, motivation, and feelings. The increase of dopamine released from drugs can have an overload causing you to have an euphoric effect, causing the brain to reinforce this feeling and crave it. The crave of dopamine cannot be obtained regularly by usually stimulating events, causing the drug user to want more. The brain then send a signal or memory remembering the feelings and associating it with pleasure, the user may not be aware, however the brain remembers this feeling, and is teaching us to repeat this event, soon leading to addiction. The everyday pleasures of a drug user is reduced, often leading to depression (Drugs and the Brain). As the drug user keeps taking drugs there dopamine levels are getter lower, causing them to need higher amounts known as tolerance, this is why a drug user is always needing