Japan is NOT part of Asia according to some Japanese. Japan is separated from Asian continent by water, and some Japanese believe it's not part of Asia. If they say something like: We are building new factories in Asia, the phrase would explicitly mean We are building new factories in Asia, but outside of Japan.
Castor oil is used to treat constipation. It may also be used to clean out the intestines before a bowel examination/surgery. Castor oil is known as a stimulant laxative. It works by increasing the movement of the intestines, helping the stool to come out.
Hair Darkening. Castor oil can also be used to give your hair a richer and darker hue. The humectant effect and nutrients of castor oil can help your hair to retain needed moisture, increasing its dark color. Use a pea-sized amount of the oil and mix with your regular leave-in conditioner.