headache is often experienced person. debilitating headaches a person, especially when the work piled up to be completed, or when you're looking to relax spend time with family. many things that can cause headaches, and it comes from one of the objects around us. computer screen can make you feel a headache, headache is usually triggered by tired eyes and circulatory substandard. there is also derived from the headset, without realizing the frequency of the sound issuing negative effects that result from such activities which eventually causes headaches. bag is also a factor causing headache, if your bag is too heavy, the shoulder is also increasingly heavy burden. This can lead to shoulder pain, neck to headaches. in addition there is a cap, and a cell phone that trigger headaches. be advised not to use this tool too frequently or excessively.