There are hundreds of acupuncture points on the body. And one popular point that you often see in acupuncture images or receive during treatment is Yin Tang. Yin Tang is also knows as the Hall of Impressions. It is located between the inner eyebrows and is also known as the third eye area. It can be used for headaches, allergies, sinuses, vertigo, heavy sensation in the head, anxiety, insomnia, stress, and eye disorders.