Why do narcissists stare?

What colorblindness is more common in males than in females because it is carried on the X chromosome? What does muscle cells produce under anaerobic conditions? Which blood vessel carries oxygenated blood from lungs to the heart? Why does my cousin want to talk to me - we are close and he has a mental illness and autistic and used talk to me all the time but I have not been answering him because I have been stressed? Is the respiratory system or digestive system connected? What causes constant tingling in the right hip feels like a tens unit? How do you control people in anger who are suffering from down syndrome? How does the ventilation of the lungs change while an athlete exercises? What symptoms should you look for if you think you may be pregnant? What is cardiac depolarization? Describe the roles of the liver in assimilation? Should you avoid foods that cause heartburn? What birds should humans not eat? What does a treble cleft mean in music? Is they unstressed or stressed? When do rhinos breed? Can you only get adult chickenpox on one part of the body? What are deltoids and biceps? Are STDs infectious or noninfectious? Does plutonium make your hair fall out?