The season in which babies are born can have a dramatic and persistent effect on how their biological clocks function. The imprinting effect, which was found in baby mice, may help explain the fact that people born in winter months have a higher risk of a number of neurological disorders including seasonal affective disorder (winter depression), bipolar depression and schizophrenia.
Astrologers have been saying this forever? Considering astrology is seasonal? (New life Spring Aries and equinox balance Libra). I suppose every natural art from astrology to numerology to divination will be poked fun at and denigrated until some precious science folk validate the claims we have always made.