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Aspirin use
* can also produce tinnitus and vertigo
  - increase bleeding
* is associated with lowered risk of colon, esophageal, ovarian and breast cancer
  - low among United States outpatients with coronary artery disease

Careless use
* can burn skin and eyes, or cause respiratory problems.
* leaves some food with a lot, and some with a little, which allows animals to avoid it.

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Chronic use
* can cause bleeding, ulceration, and perforation of the stomach.
* can lead to effects that take up to two years to wear off
  - muscle wasting and reduced muscle tone and strength
  - rapid development of tolerance and dependence
  - produce kidney, heart, lung and liver damage
  - result in the same health problems associated with cigarette smoking
  - ulcerate the mucous membrane in the nose
* leads to addiction and dependency
  - the development of tolerance and to both physical and psychological addiction

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Cocaine use
* affects all ages and socioeconomic brackets.
* can be dangerous as well as lead to addiction
  - cause heart attacks, seizures, strokes, and respiratory failure
* can result in cardiovascular collapse, coma and death
  - stroke, brain hemorrhage, brain infection, and psychiatric disorders
  - temporarily cause hypertension
* causes a brief, sudden wave of high blood pressure
  - many deaths in the United States
* creates psychological and physical dependence.
* increases heart rate and causes vasoconstriction
  - the rate of miscarriage
* is determined by detection of benzoylecgonine, a metabolite of cocaine
  - down in the United States and continues to be very small in Asia
  - linked with eating disorders, disability and death from heart attacks and strokes
  - much lower than in older age groups, where drug use as a whole is less prevalent
  - significantly higher among the unemployed than the employed
* is the fastest growing drug problem in the U.S. can become a lifetime illness
* remains at a relatively low level but abuse of pharmaceutical drugs is rising.

Computer use
* can be another form of parent involvement, if parents use it advantageously
  - isolate people
  - lead to quality and quantity of service
* does present some clear health risks, mostly due to eye and muscle strain.
* is especially significant in teaching geometry and music theory.

Continued use
* can produce violent behavior and a psychotic state similar to schizophrenia.
* helps prevent fatty acid buildup in the body.

Continuous use
* can also lead to addiction and dependency.
* leads one to longevity with light weight.

Contraceptive use
* begins to rise as well, however, and the fertility rate starts to decline.
* can help protect women's lives and health by avoiding pregnancies.
* causes a devaluation of human life.
* is an important determinant of such pregnancies
  - common in some areas and rare in others
  - more common in metropolitan areas
  - one indicator of access to reproductive health
  - still relatively limited in Africa

Domestic use
* is driven by sustained growth in food use, particularly the processed food sector.
* is the highest use of water and takes precedence over all appropriative uses
  - and takes precedence over appropriative uses