Cholesterol and violent behavior

J M Santiago1, J E Dalen

  • 1Department of Psychiatry, University of Arizona College of Medicine, Tucson.

Insights

Cholesterol-lowering programs reduced heart attacks but not overall deaths. Research explores links between cholesterol, serotonin, and violent behavior, but a definitive connection remains unproven.

Area of Science:

  • Cardiovascular Medicine
  • Neuroscience
  • Public Health

Background:

  • Myocardial infarction incidence has decreased significantly.
  • Cholesterol-lowering programs have not demonstrated a reduction in total mortality.
  • This discrepancy prompts investigation into alternative mortality causes.

Purpose of the Study:

  • To review hypotheses linking cholesterol levels to mortality from accidents, suicide, and homicide.
  • To examine the evidence supporting the connection between cholesterol, serotonin activity, and violent behavior.
  • To assess the current understanding of the complex determinants of violent behavior.

Main Methods:

  • Literature review of studies on cholesterol, mortality, and violent behavior.
  • Analysis of proposed explanations for increased violent death rates.
  • Evaluation of the evidence for a cholesterol-serotonin-violence link.

Main Results:

  • While cholesterol-lowering programs reduce myocardial infarction, overall mortality benefits are not proven.
  • Hypotheses suggest a link between cholesterol levels and mortality due to accidents, suicide, and homicide.
  • Some findings suggest a relationship between violent behavior and serotonin activity, but the cholesterol link is not established.

Conclusions:

  • The relationship between cholesterol, serotonin activity, and violent behavior requires further investigation.
  • The complexity of violent behaviors and their multiple determinants currently prevents a simple explanation.
  • Further research is needed to clarify the role of cholesterol in non-cardiac mortality outcomes.

Related Concept Videos

Aggression01:47

Aggression

Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for hire...
Lipids: Dietary Sources and Requirements01:18

Lipids: Dietary Sources and Requirements

Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ meats, shellfish,...
Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Human Genetics01:28

Human Genetics

Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
Psychoneuroimmunology: Cardiovascular Disease01:27

Psychoneuroimmunology: Cardiovascular Disease

Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
Causes of Social Behavior III: Biological and Environmental Influences01:28

Causes of Social Behavior III: Biological and Environmental Influences

Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...