It turns out your future health may be written in your star sign.
New research has revealed your birth month could actually predict your risk of developing more than 30 different health conditions.
Scientists at Columbia University examined the birth dates and medical records of 1.7 million patients treated at New York-Presbyterian Hospital between 1985 and 2013.
According to the study, researchers found 39 suspected links between birthday and disease risk.
So what's your health horoscope?
If you were born in January through to March, you may have a higher risk of cardiovascular disease and lower risk of neurological, respiratory, and reproductive conditions.
If you were born in October through to December, you have a lower risk of cardiovascular disease, but a higher risk of neurological, respiratory, and reproductive conditions.
Co-study author Mary Regina Boland, a Ph.D. student at Columbia University Medical Center, says your mum's environment when she was pregnant could compromise your immune system.