Light quality and the relationship to fertility

Several recently published articles have looked at the relationship of light to the female ovulation cycle. From the anecodotal description of the Burnett Park Zoo in Syracuse installing sunlight-simulating bulbs to reduce vandalism and then discovering the subsequent increase in animal birth rate to more formal studies.


The theory behind this relationship is that humans developed living in bright light during the day and full darkness at night – except for the few days surrounding a full moon. According to this theory – Lunaception – by ensuring that sleep takes place in full darkness, followed by exposure to full light in the morning and a dim night light for the few days of full month, a woman’s cycle will reset to it’s optimal timing.


Subsequent research to support this theory was conducted by Centre for Chronobiology, Institute of Internal Medicine, Siberian Branch of the Russian Academy of Medical Sciences, Novosibirsk, Russia.


Studies have shown a shortening of the menstrual cycle following light exposure in women with abnormally long menstrual cycles or with winter depression, suggesting that artificial light can influence reproductive hormones and ovulation. The study was designed to investigate this possibility.


Morning exposure to bright light in the follicular phase of the menstrual cycle stimulates the secretion of hypophyseal reproductive hormones, promotes ovary follicle growth, and increases ovulation rates in women with slightly lengthened menstrual cycles. This might be a promising method to overcome infertility.


While still an alternative school of thought, paying attention to quality of light can be a non-invasive safe proceedure for those wishing to conceive.


Related posts:

  1. How light affects sleep quality
  2. What is the relationship between sunlight and breast cancer?
  3. Chickens, food miles and light quality.
  4. Blue-enriched white light in the workplace improves self-reported alertness, performance and sleep quality

Tags: , ,

Comments are closed.