When I worked in astronomy, the management teams would mislead the staff about the biological toxicity of harmful things that the staff would be routinely exposed to.

There are no doubts that the Mauna Kea Observatories (MKO) management teams knew that summit workers were suffering daily from the serious effects of oxygen starvation to the brain and body.

If the astronomy management team becomes aware that you have developed long term high altitude sickness, then it is reasonable to think that you may be terminated soon.

It was clear to me that upper management and astronomers were adverse to going to very high altitude observatories.

Workers should refuse to work in any environment that depresses their blood oxygen levels below 92% SpO2.

Extreme night shift work was lone working for up to eighteen hours per night for several nights on the very high altitude summit of Mauna Kea.

Astronomers do not disclose to their nighttime support staff that they are at significant risk of developing shift work sleep disorder (SWSD) and the associated range of other sleep disorders.

I worked on Mauna Kea for over five years and saw my health severely degrade during that time. The two long term summit workers that I knew well died of disease conditions, another worker went on to commit suicide, and others were argumentative.

It always bothered me that one of my friends at the summit of Mauna Kea committed suicide. Many years later I discovered that the very high altitude summit is biologically toxic to sea level adapted humans.