“…No study could be selected for ayurveda, chelation, energy healing therapy, folk medicine, reiki, vitamin, massage, music therapy, and qi gong. Of the 40 studies selected, 12 focused on melatonin as possible intervention for insomnia disorder [ 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 ], 9 on meditative movement therapies [ 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 ] (particularly, n = 1 on yoga [ 72 ], 6 on mindfulness [ 73 , 74 , 75 , 78 , 79 , 80 ] and 2 on tai chi [76.77]), 7 on exercise [ 81 , 82 , 83 , 84 , 85 , 86 , 87 ], 5 on natural herbal pharmacotherapy [ 88 , 89 , 90 , 91 , 92 ], 2 on light exposure [ 93 , 94 ], 2 on transcranial magnetic stimulation (rTMS) [ 95 , 96 ], 1 on homeopathy [ 97 ], 1 on hypnotherapy [ 98 ], and 1 on dietary supplements [ 99 ]. Two studies which evaluated exercise [ 82 , 83 ], one study evaluating melatonin [ 61 ], and...…”