Title: Can Your Birthday Predict Your Mental Health? | Psychology Today
Headings: Can Your Birthday Predict Your Mental Health?
Ralph Ryback M.D.
Can Your Birthday Predict Your Mental Health?
Research reveals some unnerving links, and suggests some explanations.

Content: The month in which people are born can influence their future, from their longevity to their profession. Mental illness linked to birth month
In a 2012 study, a group of researchers at Queen Mary University in London investigated whether the risk of schizophrenia, bipolar disorder, and major depression increased depending on one's birth month. These researchers looked at more than 29 million people from England’s general population, 58,000 of whom were diagnosed with one of these three conditions. Winter babies were at the greatest risk for schizophrenia and bipolar disorder, with January being the most common birth month for this group. Spring babies, meanwhile, appeared to be at greatest risk for depression, which demonstrated an almost significant peak in May.
Schizophrenia had significant lows for people born in July, and bipolar disorder had significant lows for individuals born in August and September. People born in November were significantly less likely to experience depression. Suicide linked to birth month
According to the National Alliance on Mental Illness (NAMI), an estimated 90 percent of individuals who commit suicide suffer from mental illness. It should come as no surprise, then, that suicidal behavior may also be linked to birth month. Another British research team examined the data from nearly 27,000 suicides between 1970 and 2001 and found that individuals born in April, May, and June had the greatest risk of committing suicide. Their risk was 17 percent higher than that of people whose birthdays fell in the autumn or winter.