Unraveling the Body’s Surprising Tolerance to Extreme Doses of Psychoactive Substances


Understanding the Puzzle of Extreme Tolerance

The study, conducted by DG Baitubayev and MD Baitubayeva, delves into how PAS-dependent individuals often consume doses nearly 10 times the lethal limit for non-dependent people. The secret lies in the body’s remarkable ability to increase tolerance as a response to repeated exposure.

The key discovery: this tolerance stems from a biological adaptation rather than a simple pathological condition.

The Mechanism Behind Tolerance Progredient Adaptation

Unlike previously held beliefs that saw addiction solely as a disease, this research introduces the concept of progredient adaptation a progressive physiological adjustment of the body’s systems.

How Does This Adaptation Work

  • Initial Exposure: The body experiences mild activation reactions with increased protective functions.
  • Ongoing Use: Continued PAS exposure leads to the hypertrophy (enlargement) of the adrenal cortex and endocrine glands.
  • Increased Resistance: This hypertrophic response enables the body to handle increasingly higher doses without experiencing toxicity.
  • Advanced Excitation: The vegetative nervous system (VNS) anticipates heightened demands, releasing excess neurotransmitters as a preparatory mechanism.

The American Society of Addiction Medicine (ASAM) emphasizes that addiction involves complex interactions between brain circuits, genetics, and environmental factors, aligning with the study’s proposal of neuroendocrine adaptability as a central mechanism.

Adaptive Hypertrophy A New Perspective on Addiction

The researchers argue that:

  • Regular PAS use leads to adaptive hypertrophy of the endocrine system.
  • The body’s enhanced capacity allows it to process extreme PAS doses with minimal harm.
  • This process avoids the exhaustion phase typically associated with chronic stress responses.

Revisiting Addiction Disease or Adaptation

Traditionally, addiction has been classified as a chronic disease. However, this study challenges that paradigm:

  • The adaptive changes are functional, not pathological.
  • Tolerance increase reflects the body’s ability to adjust, not a degenerative process.
  • Only when the adaptive capacity is depleted (hypotrophy of endocrine systems), does pathology emerge.

As highlighted by the National Institute on Drug Abuse (NIDA), the biological changes in addiction are deeply intertwined with adaptive mechanisms, supporting the concept that not all addiction-related changes are inherently harmful at the physiological level.

Clinical Implications and Future Research

Understanding PAS tolerance through the lens of progredient adaptation opens doors for:

  • New therapeutic strategies focusing on neuroendocrine regulation.
  • Preventive approaches targeting early stages of adaptive hypertrophy.
  • Reevaluation of treatment paradigms that distinguish between adaptive and pathological phases of addiction.


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