What catogory does fear belong?

How do you get vagianal infection? Why do you love farts? Why should Ebola victims be isolated? Why did the flu pandemic begin to die out? Is it dangerous to exercise with a chest infection? What is the components of the lungs? If your overweight and dont know if your pregnant can the baby form on the top half of your stomache? How do you tell the difference between dense regular connective tissue and smooth muscle tissue when looking at slides? How do antibodies interact with viruses? What color is phlegm in a cold versus the flu? What kind of spider lays eggs in a human? What absorbs and distributes materials throughout the body? Historically had the most suspected cervical spine injuries? Do kids loose there meat chewers teeth? My Testicle feels sensation without touch? What are causes and cueses of Loss of male libido? How could e-coli get into the knee? If you are bleeding 4 days before your period is due and you have a few pregnancy symptoms is there a chance you can still be pregnant? What does it mean if the clear blue easy digital test says nothing but 'see leaflet'? Can a person die from the disease of Brucellas?

What catogory does fear belong?