A new study by researchers of Harvard T.H. Chan School of Public Health found that women who do physically demanding jobs and night shifts are associated with poor fertility.The current study found that physically demanding jobs and working outside the general hours i.e night shifts lower the chances of conceiving in women.
Research Study
- Researchers observed Ovarian reserve in 473 women attending a fertility clinic
-The ovarian reserve refers to the number of remaining eggs and the level of Follicle Stimulating Hormone (FSH) levels that usually rise with the age of women and indicates decreasing fertility
- The average age of participants in the study was 35 their average Body mass Index was 23
- The women are enquired about their jobs, level of physical activity, hours and the pattern of jobs
- The researcher observed that the type of workload has no effect on FSH levels but in women with physically demanding jobs has a lower reserve of eggs.
- Also among the women undoing IVF those with physically demanding jobs have 9% lower reserve of eggs and 14.5% mature eggs than women not involved in heavy lifting
- The results are similar in women working in night shifts and researchers attributed this to the disturbance of their biological clock.
- Obese women with physically demanding jobs also have lower number of mature eggs
- This is the first study to report the association between occupational factors and reproductive capacity.
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Researchers suggest that occupational factors affect the quality and production of oocytes rather than increasing ovarian aging. As a result, there will be very few oocytes that mature into healthy embryos. Researchers opine that large studies have to be done to confirm these findings.
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