For a poet to depict a poet in poetry is a hazardous experiment in regarding one's own trade a sense of humour and a little wholesome cynicism are not amiss.
The bottom line is that the human body is complex and subtle and oversimplifying - as common sense sometimes impels us to do - can be hazardous to your health.
Loads of chemicals and hazardous wastes have been introduced into the atmosphere that didn't even exist in 1948. The environmental condition of the planet is far worse than it was 42 years ago.
Death not merely ends life it also bestows upon it a silent completeness snatched from the hazardous flux to which all things human are subject.