From the perspective of modern psychology and behavioral science, it’s fascinating to analyze how this phenomenon works . Although popular astrology and numerology attribute magical qualities to each month, psychology has studied why we identify so strongly with these descriptions and how seasonality (the time of year we are born) can indeed influence our biology in very subtle ways.
Next, we analyze both sides of the coin: what science says about being born in certain months and the popular traits that culture usually attributes to each time of year.
🔬 Real Science: Does Seasonality Affect the Brain?
Although the month doesn’t determine your destiny or your exact character, studies in chronobiology and neuroscience have discovered that the season in which we are born (due to exposure to sunlight, temperature, and seasonal infections during gestation) can slightly influence certain neurotransmitters such as dopamine and serotonin :
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Born in Spring/Summer (Northern Hemisphere): They tend to show slightly higher rankings in hyperthymia (optimistic temperaments, high energy and enthusiasm), although they may also experience faster mood swings.
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Born in Autumn/Winter: They show a lower tendency towards cyclothymia (emotional ups and downs), but may have a subtly greater predisposition to introspection or self-regulation.
The Forer Effect (Why we identify so much)
In psychology, this is known as the Barnum or Forer Effect : when we read general personality descriptions that seem very specific but apply to almost any human being (example: “You are an independent person, but sometimes you need the support of your loved ones” ), our brain automatically looks for memories that confirm that statement, making us feel deeply understood.
