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.
Seoul has a wet and very humid climate during the summer season, with cold and dry weather during the winter season. Spring (although windy) and autumn are pleasant but are short in duration. These seasons are considered the best time to visit Seoul.