of Iowa - look the ischemic optic neuropathy and found that it correlated actually with - too little blood pressure in the optic artery causing a loss of blood flow of the blood vessel itself collapsed and and they showed that the coupling of taking an antihypertensive when going to bed with with the natural diurnal Brides and follow the blood pressure that was the worst time to be taking a medication like that and it seems that when I mentioned this to people in the medical profession most people oh that's that that's new to