Millennials detest being stereotyped or labeled a certain way. So it’s surprising why so many of them are obsessed with what their daily horoscopes have to say. With 58 percent of 18-24-year-old Americans believing that astrology is scientific, feelings of skepticism regarding zodiac signs and horoscopes are progressively decreasing.1
Therefore, it is not completely unnatural to find a strong community of young, hip, perfectly normal people who turn to astrology for predictions about their relationships and career life. But what many people don’t know is that the month you’re born in can have a lot to do with your health.
Researchers believe that this connection has a lot to do with the characteristic traits of the season your birth month falls under. Here, we’re going to look at what these seasonal traits are and how each one can affect your health.
Babies May Have A Higher Risk Of Heart Disease
A study revealed an increased risk of heart disease in babies born in the months of spring, more specifically in March. This was not just one type of heart disease, but several, including congestive heart failure and atrial fibrillation, a disease characterised by irregular heart rhythm.2
Previous studies have established a link between vitamin D deficiency and heart problems.3 Although the exact link between vitamin D levels and heart health is not known, scientists have found that a single dose of this nutrient can significantly improve endothelial function and cause a decrease in blood pressure.4
Babies Are More Likely To Develop Multiple Sclerosis
What research says
Several studies state that people with spring birthdays tend to have a higher risk of developing multiple sclerosis (MS) later on in life. This association was found to be stronger in geographies far off from the equator, where spring is characterized by low sunlight and consequently, low vitamin D levels.6
With studies proving that an increased exposure to sunlight (thus, a decreased risk of vitamin D deficiency) is linked to a lower risk of MS, more so if the body was exposed to high levels of sunlight during childhood and adolescence, science has certainly established a clear link between vitamin D deficiency and an increased risk of multiple sclerosis. 7 Given that spring babies are already at a higher risk of vitamin D deficiency, it is no wonder that they also show a higher risk of developing MS.
Babies Are Born Healthier
What research says
According to a study, babies born from June all the way through August are more likely to be healthy. They display a higher birth weight, later puberty, and also tend to be taller once they enter into adulthood.8
Researchers believe that it has a lot to do with vitamin D exposure, which peaks during the summer months. Not only does this trigger higher levels of hormones that are necessary for child growth, but also contribute to a stronger immune system and healthy bone formation.9 A deficiency in vitamin D is also closely linked with an increased risk of obesity and diabetes.10
This is why, it is very likely that women who get pregnant during summer could be getting a lot more vitamin D than those getting pregnant earlier or later on in the year, thus fortifying their babies against disease.
Are More Prone To Eyesight Problems
What research says
A study involving 276,911 Israeli adolescents aged between 16 to 22 years old found a higher rate of prevalence of myopia during peak summer months (June and July).11
Researchers believe that summer babies are more prone to sun exposure as compared to those born in the darker winter months. This could significantly lengthen the shape of the eyeball, thereby leading to a higher risk of myopia and refractive error.
Babies Are More Prone To Bronchial Asthma
Studies have found that babies born in fall (from August to October) showed a higher prevalence of bronchial asthma as compared to those who were born in spring (from February to April).12
Researchers are of the opinion that the mothers of babies born in fall are pregnant throughout the winter months – a time where they are at a higher risk of catching a cold or the flu. This factor could significantly affect the respiratory health of the developing fetus.
Babies Are More Prone To Allergic Infections
In addition to respiratory illnesses like bronchial asthma, research has also shown a higher risk of allergic infections in babies whose birthdays fall in autumn.13
Researchers have come up with a theory that babies born in Autumn are made to stay indoors more during the first few months after their birth. Since autumn also marks the onset of winter, parents insist on keeping the windows shut while turning to indoor heating to keep the surroundings warm. This may increase the exposure of the baby to harmful allergens such as dust mites and smoke, which may scar the baby’s lungs.
However, researchers also insist that birth month is not the sole contributor to an autumn-born baby developing asthma. Exposure to environmental factors like pollution may also have plenty to do with bad lung-health in a baby.
Babies Are More Prone To Mental Disorders
What research says
Studies have found that the rate of mental diseases such as schizophrenia and bipolar disorder tend to peak in babies born in winter months (between December and March).14
Researchers are of the opinion that pregnant women who are expected to give birth in the early months of the year (January and February) have just come through the season of flu. This coincides with the second half of the pregnancy, a time that marks the establishment of links between the neural cells in the brain. If a mother-to-be happens to pick up the flu during this time, it could significantly disturb these growing connections.
Another theory is that babies born in winter months experience shorter days. This means they are less exposed to sunlight and vitamin D, which play a huge role in the secretion of mood-balancing hormones like dopamine and serotonin.15 This factor could, therefore, play a huge role in increasing the risk of mental disorders in winter babies.
Don’t Stress Over It
Just because certain seasons are significantly associated with a higher risk of specific diseases, it is important to not get overly anxious if your baby’s birthday falls bang in the middle of winter or summer. Researchers insist that the risk is not great enough to cause people to worry about when they were born or when their babies are going to be born. In fact, there are plenty of risk factors to contribute to the health of an individual, such as diet, exercise, and exposure to environmental pollutants and stress. Therefore, as long as an individual leads a healthy life right from childhood all the way into adulthood, there is a high chance that he or she may enjoy a better healthspan.
|↑1||Chapter 7. Science and Technology: Public Attitudes and Understanding. National Science Foundation.|
|↑2||Boland, Mary Regina, Zachary Shahn, David Madigan, George Hripcsak, and Nicholas P. Tatonetti. “Birth month affects lifetime disease risk: a phenome-wide method.” Journal of the American Medical Informatics Association 22, no. 5 (2015): 1042-1053.|
|↑3, ↑4||Judd, Suzanne E., and Vin Tangpricha. “Vitamin D deficiency and risk for cardiovascular disease.” The American journal of the medical sciences 338, no. 1 (2009): 40.|
|↑5||Jin, Hyun Joo, Jun Ho Lee, and Moon Kyu Kim. “The prevalence of vitamin D deficiency in iron-deficient and normal children under the age of 24 months.” Blood research 48, no. 1 (2013): 40-45.|
|↑6||Torkildsen, Øivind, Nina Grytten, Jan Aarseth, K‐M. Myhr, and Margitta T. Kampman. “Month of birth as a risk factor for multiple sclerosis: an update.” Acta Neurologica Scandinavica 126, no. s195 (2012): 58-62.|
|↑7||Alharbi, Fatimah M. “Update in vitamin D and multiple sclerosis.” Neurosciences 20, no. 4 (2015): 329.|
|↑8||Day, Felix R., Nita G. Forouhi, Ken K. Ong, and John RB Perry. “Season of birth is associated with birth weight, pubertal timing, adult body size and educational attainment: a UK Biobank study.” Heliyon 1, no. 2 (2015): e00031.|
|↑9||Weydert, Joy A. “Vitamin D in Children’s Health.” Children 1, no. 2 (2014): 208-226.|
|↑10||Grineva, E. N., T. Karonova, E. Micheeva, O. Belyaeva, and I. L. Nikitina. “Vitamin D deficiency is a risk factor for obesity and diabetes type 2 in women at late reproductive age.” Aging (Albany NY) 5, no. 7 (2013): 575.|
|↑11||Mandel, Yossi, Itamar Grotto, Ran El-Yaniv, Michael Belkin, Eran Israeli, Uri Polat, and Elisha Bartov. “Season of birth, natural light, and myopia.” Ophthalmology 115, no. 4 (2008): 686-692.|
|↑12, ↑13||Chang, Wei-Chiao, Kuender D. Yang, Man-Tzu Marcie Wu, Ya-Feng Wen, Edward Hsi, Jen-Chieh Chang, You-Meei Lin, Ho-Chang Kuo, and Wei-Pin Chang. “Close correlation between season of birth and the prevalence of bronchial asthma in a Taiwanese population.” PloS one 8, no. 11 (2013): e80285.|
|↑14||Torrey, E. Fuller, Robert R. Rawlings, Jacqueline M. Ennis, Deborah Dickerson Merrill, and Donn S. Flores. “Birth seasonality in bipolar disorder, schizophrenia, schizoaffective disorder, and stillbirths.” Schizophrenia research 21, no. 3 (1996): 141-149.|
|↑15||Spedding, Simon. “Vitamin D and depression: a systematic review and meta-analysis comparing studies with and without biological flaws.” Nutrients 6, no. 4 (2014): 1501-1518.|