Biorhythms are the real deal! This app shows me what I need to know about my self, my partner, and my son. No wonder we barely get along (my son, that is)!! This helps me know how and when to communicate with him. I found that my partner and I are so great together because we are completely in sync! On days my chart suggests I stay home, i do! On days it suggest I can’t think straight, it’s right! Just WOW! To the developers.... Thank you! This app must have taken a great deal of time, research, and work. I applaud you, and Thank You again!!!!