Hot flashes and other vasomotor symptoms accompany the menopausal transition. When activated, each red light flashes for a third of a second. HRT may be reasonable for the treatment of menopausal symptoms, such as hot flashes. It also became possible to transmit complex signals using the light flashes. Cynthia Nelson documents seeing nothing other than a few 'intermittent flashes of light'. Flashbulbs took longer to reach full brightness and burned for longer than electronic flashes. Sprites appear as luminous reddish-orange flashes. That your life flashes before your eyes. They have also been used in photography as a critical part of flashes (strobes). They started planting immediately, and often worked in sight of artillery flashes. Gabapentin can decrease the amount of hot flashes. Hypnosis may reduce the severity of hot flashes. "It was just one of those flashes of inspiration that happens sometimes," Rock explained. X-rays are also produced in lightning accompanying terrestrial gamma-ray flashes. A battle ensues between the three Flashes and the two Zooms.