Xinhua News Agency report of July 23rd from Geneva (by staff reporter Lu Dashen) - The World Health Organization warned in a booklet on July 23rd here that over-exposure to the sunlight should be avoided because it could lead to skin cancer and cataract.

• 新华社日内瓦7月23日电（记者陆大生）世界卫生组织23日在这里发表的一本册子中告诫说，要防止太阳紫外线的曝晒，因为这容易导致皮肤癌和白内障。