I would be more happy to accept the idea that depression was usually a result of a chemical imbalance in your brain if this was able to be reliably diagnosed by

I would be more happy to accept the idea that depression was usually a result of a chemical imbalance in your brain if this was able to be reliably diagnosed by measuring the balance of chemicals in your brain, rather than the current method of divining the supposed chemical imbalance by filling in a short questionnaire.