Oolong tea, made from more mature leaves, usually have less caffeine than green tea. On the flip side, mature leaves contain less theanine, a sweet, natural relaxant that makes a tea much less caffeinated than it actually is. That is the theory, anyway.
The highest point in Asia is Mt. Everest which is 8,850 meters above sea level. And Asia's lowest point is the Dead Sea which is 400 meters below sea level.
There are some other countries also that are considered to be part of Central Asia. They are: Afghanistan, Northern Iran, Kashmir, northern Pakistan, Mongolia, Xinjiang and Tibet, and southern Siberia. Uzbekistan is the most-populous country in Central Asia; it has an estimated population of 27.6 million.