How is unhygienic condition harmful?

What do experimental psychologist provide? Is 95 over 63 too low blood pressure for a 57 year old woman who is 5 ft tall and weighs 135 lbs? How does blood related to HIV and AIDS? Why does AIDS exist? What phobia is the fear of performing? Does your period tell you it is coming and how does it tell you? Which welts look like ringworm? Does lyme cause inability to sneeze? If you get your ears peirce then let them grow back in does it hurt more or less to get them peirce again? What system works with the digestive system? What is use of pressing breasts? Will bone fractures in the leg stunt a teenager's growth? What is a surgical joining together of spinal vertabrae? Where is Cardiac muscle found and what does it do? What is the most common medical treatment for gallstones? How many neurons are used outside the CNS in the somatic nervous system? Is lymphocyte level of 13.0 dangerous? How can too little or too much food lead to malnutrition? Which organ functions to prepare the mother's breasts for lactation? What rhymes with amnesia?