Yes its important to look at the whitepaper, a lot of features are explained in it and its easier to understand the potential of the project. You dont have to read it all, you can also see a short intro for EHF to see if you like the project and his potential.
It is advisable to study the lives of Medical members of Ehealth, they have done so much and have come to the project with much to apply, doing external research to the crypto brings many benefits and allows you to be ahead and more in depth in the projects and Team