Decoding the Findings: How Night Shifts Increase Asthma Risk in Women
A large UK-based study has revealed a concerning link between working night shifts and a significantly higher risk of asthma in women. The research, which analyzed data from over 270,000 participants, provides compelling evidence that working against the body’s natural circadian rhythm may have gender-specific health consequences.
Key Findings of the Study
Women Are Disproportionately Affected: The study found that women who work permanent night shifts have a 50% higher chance of developing moderate to severe asthma compared to those working regular daytime hours.
Postmenopausal Women at Higher Risk: The risk nearly doubles in postmenopausal women not using hormone replacement therapy (HRT), while those on HRT did not show the same elevated risk.
No Similar Pattern in Men: Interestingly, the research found no significant correlation between night shift work and asthma in male participants.
Hormonal & Circadian Mechanisms: Disruption to sleep cycles, reduced melatonin production, and changes in sex hormone levels—particularly lower testosterone—are believed to be contributing factors.
Why This Matters
Night shift work is essential in many industries, especially healthcare, manufacturing, transport, and security. However, the health implications for women, particularly in middle age and beyond, are now more evident than ever. This study highlights the urgent need to reevaluate workplace policies, shift schedules, and preventive healthcare practices for women in such roles.
Frequently Asked Questions (FAQ)
Q1: What does the study reveal about asthma and night shift work?
A: The study shows that permanent night shift work is associated with a significantly increased risk of moderate to severe asthma in women, particularly those who are postmenopausal and not on HRT.
Q2: Why are women more affected than men?
A: Biological differences in hormone levels, especially lower testosterone and changes in estrogen during menopause, may make women more vulnerable to the respiratory effects of circadian disruption.
Q3: Does hormone replacement therapy reduce asthma risk?
A: The study suggests that HRT may have a protective effect, as postmenopausal women on HRT did not show the same increase in asthma risk as those who were not using it.
Q4: What can be done to reduce risk?
A: Employers should consider more flexible shift patterns, health screenings, and education on sleep and hormonal health. Workers should consult healthcare providers about managing shift-related risks, especially during and after menopause.
Q5: Is this a cause-and-effect relationship?
A: While the study identifies a strong association, it does not prove direct causation. Further clinical and longitudinal research is needed to understand the mechanisms involved.
Published on: June 28, 2025
Uploaded by: PAVAN
www.vizzve.com || www.vizzveservices.com
Follow us on social media: Facebook || Linkedin || Instagram
🛡 Powered by Vizzve Financial
RBI-Registered Loan Partner | 10 Lakh+ Customers | ₹600 Cr+ Disbursed