9) The CIRCULATION-SEX (PERICARDIUM) MERIDIAN is at Flood Tide between 7:00-9:00 p.m. The Circulation-Sex Meridian is at Half Tide (on the way out) between 1:00-3:00 a.m. (6 hours and 90 degrees later). The Circulation-Sex Meridian is at Ebb Tide between 7:00-9:00 a.m. (12 hours and 180 degree... Read More