Recently, the weather is very hot. Zhang Dage in Guangzhou sleeps on the bamboo cold pillow mat with the air conditioner on at night, feeling very comfortable. However, it was only a few days later. When I got up in the morning, I found that my neck was too painful to turn. When I went to the hospital with my neck tilted, the doctor said it was [stiff neck]. Zhang Dage was able to move his neck the next day after a physical therapy and massage. But a few days later, it recurred again. What is the matter with this annoying stiff neck? What is stiff neck? We say stiff neck, also known as [lost pillow], modern medical diagnostic noun Read More …