Mental stress and ischaemic heart disease: an underestimated connection

Area of Science:

• Cardiology
• Psychology
• Neuroscience

Background:

• Mental stress is increasingly recognized as a significant risk factor for cardiovascular diseases.
• Ischaemic heart disease (IHD) development is a complex process influenced by various physiological and psychological factors.
• Understanding the theoretical underpinnings of stress-related IHD is crucial for effective prevention and treatment strategies.

Purpose of the Study:

• To propose a theoretical framework linking mental stress to the development of ischaemic heart disease (IHD).
• To elucidate the interaction between stressors, the central nervous system, and physiological effector systems in IHD pathogenesis.
• To identify key physiological systems involved in the stress response relevant to cardiovascular disease.

Main Methods:

• Theoretical framework development.
• Definition and exemplification of stressors (external/internal, nomothetic/idiosyncratic).
• Discussion of central nervous system processing (neocortex-paleocortex interaction) and initiation of stress reactions.

Main Results:

• Mental stress contributes to IHD through a pathway involving stressors, central nervous system (CNS) activation, and physiological effector systems.
• Four key physiological systems implicated in mental stress are the autonomic nervous system (ANS), hypothalamic-pituitary-adrenal (HPA) axis, peripheral nervous system (PNS), and endorphin system.
• Pathophysiological changes in the ANS and HPA axis are identified as particularly important in the development of cardiovascular diseases.

Conclusions:

• Mental stress acts as a significant risk factor for ischaemic heart disease (IHD).
• The interplay between psychological stressors and specific physiological systems, notably the ANS and HPA axis, drives IHD development.
• This theoretical framework provides a basis for further research into the mechanisms of stress-induced cardiovascular pathology.