### alteration | break:

Remission
* are periods when the arthritis seems to have gone away.
* is also the period when the disease is under control
  - freedom from disease
  - referrals
  - suspensions
  - where the symptoms of cancer are no longer present
* occur when myelin is able to repair itself.

### alteration | break:

Reverse fault
* are common at convergent boundaries
  - in regions of compression such as convergent plate margins
  - cracks formed where one plate is pushing into another plate
  - dip-slip faults in which the hanging wall moves up relative to the footwall
  - the result of compressional stress
* indicate compressive shortening of the crust.
* occur in areas where the crust is being shortened such as at a convergent boundary
* occur when the hanging wall has moved up relative to the footwall
  - relative movement is up the dip, and results from compression
* result from compression forces.
+ Earthquake, Causes of earthquakes, Earthquake fault types: Plate tectonics
  * Normal faults occur mainly in areas where the crust is being extended. Reverse faults occur in areas where the crust is being shortened. Strike-slip faults are steep structures where the two sides of the fault slip horizontally past each other.

### alteration | break:

Stress fracture
* Do complete warmups and cooldowns that benefit all areas of the body.
* Most stress fractures develop gradually
  - heal with a period of rest for four to eight weeks
* Most stress fractures occur in the foot, ankle, leg, and hip
  - metatarsal bone, which can create swelling in the forefoot
* appear as tiny cracks in the lower leg bones.
* are a common result of overuse or stress on the bone
  - result of overuse or excessive activity
  - among the more serious of injuries that runners can sustain
* are common in athletes and are caused by repeated trauma to a bone
  - distance runners and ballet dancers
  - diseases
  - incomplete cracks in bone caused by overuse
  - over-use injuries
  - weak spots or small cracks in the bone caused by continuous overuse
* can be difficult to manage, especially in the competitive athlete
  - easily shorten the life span of an athlete's career
* can occur at any time, but they often are caused by a build-up of stress
  - during any repetitive exercise, including running
  - in athletes with poor nutritional habits
* cause pain and tenderness at the fracture site.
* do occur in the region of the hip but they are uncommon.
* exhibit a variety of symptoms that are common to other injuries as well.
* have their origin in misuse or overuse of the bone.
* heal with complete rest.
* is primarily a clinical diagnosis.
* occur due to the repetitive jarring of a bone
  - during high impact and repeated activities
  - frequently because of continuing overuse of a joint
* occurs when a bone is repeatedly placed under too much physical stress.
* represent incomplete breaks in the bone.
* require a longer period of time to heal
  - patients to refrain from activity and often require a short-leg cast
* result due to abnormal stress in normal bone.

Stretch break
* are important when working at computer workstations or lifting patients and supplies.
* involve stretching exercises to provide relief from prolonged postures.

Thrust fault
* are faults
  - part of reverse faults
  - reverse faults that move up a shallower angle than ordinary reverse faults
* are very common in the Klamath Mountains of northern California
  - western Montana
* form nappes and klippen in the large thrust belts.
* happen when rocks are compressed, or squeezed.
* occur when one portion of the earth's crust is pushed up over an adjacent portion.
* tend to occur in intervals of high fluid pressure.

Chromosomal alteration
* are mutations that change chromosome structure
* happen in both mitosis and meiosis.