I was aware of approximately 50 high altitude workers histories during my time in astronomy. For 3 of those workers to be displaying Gender Dysphoria (GD) puts the rate at 6%. The rate is probably higher, as I suspect that some workers were hiding it.

I have the rate of Gender Dysphoria (GD) estimated at 6% of high altitude workers that I know disclosed the condition. I suspect the rate is higher due to some workers not disclosing it and the actual rate may be approximately 12%.

The most extreme weather I have experienced was on top of high altitude mountain summits at astronomical observatories.

40% less oxygen and high radiation levels can do strange things to sea level adapted humans.

The 13,796' very high altitude summit of Mauna Kea is low enough not to kill you, but high enough to damage you.

The shut down of the Thirty Meter Telescope (TMT) atop Mauna Kea is an opportunity to further research into High Altitude Observatory Diseases (HAOD).

Many years after regularly experiencing ‘Summit Brain’ atop Mauna Kea, I learned its real name was Acute Mountain Sickness (AMS) with High Altitude Cerebral Edema (HACE).

When it come to the Thirty Meter Telescope (TMT), the workers are far better informed than I was and know the many illness, disease and premature death risks of working at very high altitude that collectively are called High Altitude Observatory Disease (HAOD).

Any employer that is informing their workers that they may develop ‘Summit Brain’ and directs their employees to use drugs to do their job needs to be shut down.