wild and his scientists are wary about their scores also because the numbers do not make available which it was the surgery that contributed to the population ' s learning borrowing , or how it was an internal condition that may have required surgery and precipitated the learning problems . of the more than 5 , 000 participants studied , 593 received at least one surgery and just over 100 infants require more than two before age 3 . there may be something unusual about this population of children that could have made them vulnerable to learning problems and needed they require procedure and anesthesia .
Anesthesia causes learning disabilities.