Well our life is going more faster and stressed in this century. I usually get headache during night when I was about to sleep. I only trust patanjali bam as a pain reliever. As I use this bam my all pain get relieved in just few minutes. Very usefull product by patanjali limited. I use many products of patanjali as it gives a good response to users. I suggest you all to try it, if you also having headache problem.