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The Let-Down Effect: When De-Stressing Makes You Sick

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13.04.2026

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The proce f struggle is not paid during the battle; it is collected afterward.

Illness may be less about how much stress you face, and more about how much threat you feel.

Stress is the surface, and fear is the toxin underneath.

Twenty-five years have passed since I first described the syndrome I later called The Let-Down Effect in my book When Relaxation Is Hazardous to Your Health (2001). At the time, the relationship of stress and illness had been well established. What had not been discussed was the relationship between relaxation and illness, and the Let- Down Effect was not even a searchable term in Google. Today, however, the idea resonates with many people who recognize a familiar pattern in their own lives: They become ill, exhausted, or emotionally depleted not during stressful periods, but immediately after the pressure lifts and they begin to relax.

Over the past two decades, through clinical practice, teaching, research discussions, and thousands of communications from readers and patients, I have come to appreciate how widely this pattern appears. What began as an observation about post-stress illness over weekends and holidays now seems connected to a broad range of health and performance problems.

What Is the Let-Down Effect?

The Let-Down Effect (LDE) occurs when a period of sustained activation—whether from positive excitement or negative excitement—is followed by a sudden drop in physiological arousal. A useful analogy is a car traveling at high speed that abruptly slams on the brakes. The body has difficulty adjusting instantly to the shift.

During prolonged stress, the body mobilizes energy through hormones such as cortisol and other adrenal stress chemicals. These substances help the body cope with immediate demands by increasing alertness, boosting immune........

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