Birth order may influence your disease risk later in life. Research found first-borns were more often diagnosed with neurodevelopmental and some mental health conditions, including autism and ADHD, tics and Tourette syndrome, depression and anxiety.

It’s been revealed Zara Beth, the UK woman exposed for using a wheelchair despite being able to walk and do gymnastics, also claims to have numerous other conditions, including Tourette syndrome, autism, and full-body paralysis, which seem to come and go on a whim.