What is a 'Put Option' A put option is an option contract giving the owner the right, but not the obligation, to sell a specified amount of an underlying security at a specified price within a specified time. This is the opposite of a call option, which gives the holder the right to buy shares. BREAKING DOWN 'Put Option'
High Altitude Sickness and Everest Base Camp. One of the major challenges facing trekkers heading to Everest Base Camp or any other high elevation trek in the Himalayas is dealing with the potential threat of High Altitude Sickness. The primary cause of High Altitude Sickness is a decrease in the amount of available oxygen with altitude.
Mt. Everest averages -19Â° C. in the summer and -36Â° C. in the winter. The temperature never goes above freezing. An ordinary thunderstorm in the valley below will metamorphosise into a 75â100 mph atomic-like blast of hoary death on the mountain at 29,000 ft.