Medicare, Medicaid, Blue Cross, United Health Care, Aetna, HMO/PPO, networks, third party administrators, reinsurance, exclusions, pre-existing conditions, lasering, fraud, privacy, approvals, deductibles, co-payments, medical savings accounts and always the income tax implications of all of the above.

If you have insurance it is a good idea to read your policy. Does it cover ambulances, the emergency room, mental health, substance abuse and other rehab, TMJ, HGH? How does it define and treat experimental procedures? Transplants? Chronic conditions? Are there lifetime limits? Does it include dental insurance? Orthodontia? What happens if you move to another state or travel out of the country?

Then the doctors and hospitals have to have insurance for their liability. Malpractice has been highly publicized. Drug companies need insurance as well. To top it off, all the insurance companies buy what's called reinsurance to spread their risks as well. After all, who would sponsor the golf, tennis and other sporting events if we didn't have a huge financial services sector to make it all go.