The action would be protected by the ninth amendment is explaining medical problems to a personal physician. The text of the Ninth Amendment is very short and states the following: “The enumeration in the Constitution of certain rights shall not be construed to deny or disparage others retained by the people.”.
In 1950 there were 2.5 billion people on the planet. Now in 2019, there are 7.7 billion. By the end of the century the UN expects a global population of 11.2 billion.