The phrase
"health nightmare" refers to a situation or experience that is extremely bad or distressing for one's physical well-being.
Full definition
A report by Lloyd's and the University of Cambridge, which studied the insurance implications of a cyber attack on the U.S. power grid, paints a financial, economic and
public health nightmare.
Were it otherwise, every single apple would come with a bright red warning label «DO NOT EAT SEEDS» and it would be a public
health nightmare.
Organic landfills should just not be there — it's bad for global warming, and it's a public
health nightmare.