There are theories that have been put forward by scientists on why there may be a link between human function and personality and the positions of the planets and the stars in the zodiac. Both an astronomer and a biologist put popular arguments forward:
Dr. Percy Seymour
Percy Seymour, a recently retired lecturer in astronomy at the University of Plymouth, www.astrology.co.uk/news/percy.htm argues that solar, lunar and planetary magnetic field interaction with the earth’s own magnetic field can affect human brain development. The magnetic fields of the planets Venus and Jupiter affect solar magnetism so should also be considered as part of this theory, Seymour says. If Venus and Jupiter are associated with having children then the magnetic field theory may, with further investigation, shed some light on why this link between Venus and Jupiter and successfully giving birth appears to exist.
Dr. Frank McGillion
Frank McGillion www.frankmcgillion.com is a biologist who argues that impact of light on the pineal gland at time of birth and location (light intensity and day length vary according to where on the planet you are born) can influence both the biological and psychological development of a newborn baby in later life. So, time date and place of birth would become important considerations for this theory to work especially when assessing how well they are likely to be in adulthood. Exposure to light, and how much of it, could delay onset of puberty in animals. This begs the question: Could reproductive health problems in later life, therefore, be linked with the time of day or night at which a woman is born because of the quality and amount of light to which she was exposed immediately following birth and the implications this might have for the subsequent development of her reproductive organs? Animal studies do not provide the answers to human conditions but they can lead to further research that may eventually do this.