Don't let the "Dr." salutation fool you, her "doctorate" is an Ed.D. in education leadership, not a PhD or a medical degree.These so-called "doctors" seem pretty adept at ignoring common sense and hard data. 

Even doctors sometimes get repeat patients that complain about nonexistent illnesses…

Some potential majors would be mainly medical; like nurse, doctors and veterinarian.

Imagine all the doctors who lose their shirt on investments because in their mind they’re really smart and good at what they do. 

However; as the technology race started, it seems other countries which are much more disciplined in their education and producing more engineers (doctors, etc.)  

Doctors go to Medical School, do an Internship and Residency program, then take the Boards and begin their profession.Ultimately, you will reduce the risk of failure almost to ZERO if you treat building your Investment Portfolio like a Profession.

No asking for doctor's notes, though. 

December 2018 I severely injured my back and was forced to make this work full time as my doctors told me to never go back to working construction (I lost nerve function to my right leg for 3 months).

In my mind, if someone is so sick that they can't live without a dog in the privacy of their own home, then they should be actively treated by a doctor for that illness.

My current network ranges from doctors, company execs, blue-color workers, veterans, etc.