Half of the things do not require tests at all. E.g. light exposure and circadian rhythm are answered in a questionnaire. (And sleep quality - clue to sleep apn

Half of the things do not require tests at all. E.g. light exposure and circadian rhythm are answered in a questionnaire. (And sleep quality - clue to sleep apnea.) Likewise allergies and their medication or major gut diseases. Water sample is less useful as many people use enough bottled water and diffuse sources (out of home) to make test at any one location pointless. Leave it to epidemiology. Just ask if the person is taking lithium. Insulin resistance is done with the standard metabolic and blood panel. These are best done as screening regularly. (But nobody wants to pay for that.) Since you will be checking thyroid why not extend. Gut microbiome is speculative. We do not even have tests. Brain abnormalities? Either it is in history (major surgeries, seizures) or we don't even know what they are. Vitamins and microelements are also speculative.