Curious Parents

Could Winter Babies Really Grow Into Happier Adults?

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December babies, rejoice! Research has found that people with winter birthdays tend to be less prone to irritability, while people born in the summer are more likely to experience frequent, rapid mood swings.

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Feeling Moody? Blame Your Birthday

For fans of astrology, linking your mood to your birth month is nothing new. But for those of us who don't believe in horoscopes, maybe we should. There seems to be some scientific basis to the idea that your temperament is, in some small way, correlated to your birthday. In 2014, Xenia Gonda, an associate professor at Semmelweis University in Budapest, surveyed a sampling of college students to determine their temperament. "Cyclothymic temperament (characterized by rapid, frequent swings between sad and cheerful moods), is significantly higher in those born in the summer," according to a press release on the findings, while "those born in the winter were significantly less prone to irritable temperament." Gonda also found that fall babies show "a significantly lower tendency to depressive temperament" and spring and summer birthdays are significantly higher in "hyperthymic temperament - a tendency to be excessively positive."

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I Was Born In July So.... I'm A Grump?

This is not to say that if you've got a summer birthday you have carte blanche to be a jerk. And researchers still haven't figured out why these correlations exist. "We can't yet say anything about the mechanisms involved," Gonda said in the press release. "What we are now looking at is to see if there are genetic markers which are related to season of birth and mood disorder."

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'Tis The Season: How Your Birth Month Affects Your Life

Can Your Birth Month Affect Your Personality?

Good news for all December babies.

Can Your Birth Month Predict Disease Risk?

There do seem to be high-risk and low-risk months.

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Key Facts In This Video

  1. In studies, the month to be born in that was associated with the lowest risk for disease is May. 00:54

  2. In studies, the months to be born in that was associated with the highest risks for disease are October and November. 01:01

  3. Though there are high and low risk months to be born, the risk is not significant enough to worry about. 01:26

The Seasonal Birth Effect

The time of year you were born has other effects, too. Like how likely you are to be a smoker.

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Key Facts In This Video

  1. If you were born in the summer, research suggests you're more likely to be a smoker or shortsighted. 00:34

  2. Increased exposure to sunlight in women who get pregnant in the summer may raise the likelihood of left-handedness and schizophrenia in their children. 01:22

  3. The seasonal birth effect is only visible when looking at large populations, and no causal links between birth dates and characteristics have yet been found. 02:43

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