Do any human diseases need to have been in Adam?

Do any human diseases need to have been in Adam?
It is in the order God created man and woman
Is “fossil DNA” an observation or an interpretation of the facts?
Everyone has a choice how they behave sexually.
This hard hairless area is claimed to be a vestigial footpad, but there is no evidence for this.
More genetic information is not necessarily better information. Why?
What’s it for? Our Medical Biologist Dr Diane Eager tells us.