HEALTH

Mondays: The Silent Saboteur of Your Health

EnglandSun Jul 13 2025

Mondays aren't just a drag on your mood; they might be harming your health.

Researchers from the University of Hong Kong discovered that older adults who feel anxious on Mondays have significantly higher levels of the stress hormone cortisol in their bodies for up to two months. This isn't just a minor issue—it's a serious health concern.

The Impact of Cortisol

Cortisol is your body's alarm system, helping you stay alert and respond to threats. But when cortisol levels stay high for too long, it can:

  • Weaken your immune system
  • Increase your risk of heart disease
  • Lead to anxiety and other chronic problems

The Study

The study, published in the Journal of Affective Disorders, analyzed data from over 3,500 adults over 50 in England. Participants reported their anxiety levels on different days, and researchers later measured cortisol levels through hair samples.

Why Mondays?

Experts believe it's the sense of uncertainty and dread that the day brings. This effect was even seen in retirees, suggesting that years of Monday stress can leave a lasting impact on the brain and body. The stress response isn't just psychological—it's also tied to changes in sleep, eating, and activity levels over the weekend, which can disrupt your body's internal clock.

The Monday Effect

The sudden shift from weekend relaxation to weekday responsibilities makes Mondays feel even harder. This stress buildup might explain why heart attacks are more common on Mondays. Repeated psychological strain from daily routines can gradually wear down the body, making it more vulnerable to long-term health risks.

Combatting Monday Stress

To combat this, experts recommend a weekly "stress inventory." This involves identifying what you're dreading before your body goes into fight-or-flight mode. By recognizing and addressing your stress triggers, you can take control and reduce the impact of Monday anxiety on your health.

questions

    If Mondays are so bad, why don't we just rename them to something more pleasant, like 'Fun-days'?
    How does the study differentiate between the psychological and physiological factors contributing to Monday-specific stress?
    What are the potential limitations of using hair samples to measure cortisol levels over time?

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