Willow bark appears to be effective for back pain. In a well-designed study of nearly 200 people with low back pain, those who received willow bark experienced a significant improvement in pain compared to those who received placebo.
South Korea Table of Contents. Part of the East Asian monsoonal region, South Korea has a temperate climate with four distinct seasons. The movement of air masses from the Asian continent exerts greater influence on South Korea's weather than does air movement from the Pacific Ocean.
Korea has four seasons, with a wet monsoon/summer in the middle of the year, and a cold winter from November to March. The island of Jeju off the southern coast is the warmest and wettest place in the country. The ideal time to visit Korea is during the autumn months (September-November).