While the cause of my hair turning gray may have been caused by getting older, it was dark when we went to Mongolia (1993) and getting gray when we left (1996). Once our family ventured out at -40 F. My daughter Mandi took a picture of the hole in the ice that I fell through on the Tuul River outside of Ulaanbataar. Cold weather builds character (I am told).
Most of the countries where missionaries live, have escape plans in case of war, but for Mongolia, we had an escape plan in case the heat went off. Pray for missionaries as they may endure hardships.