The bacteria can cause infection in your mouth, which can spread to other parts of your body. 1  Brush your teeth and gums 2 to 3 times a day for 2 to 3 minutes each time. 2  Let your toothbrush air dry between brushings. 3  Use a toothpaste with fluoride.  Floss gently once a day.
Autopsy (1890) by Enrique Simonet. Thanatology is the scientific study of death. It investigates the mechanisms and forensic aspects of death, such as bodily changes that accompany death and the post-mortem period, as well as wider psychological and social aspects related to death.
Teratology is the study of abnormalities of physiological development. It is often thought of as the study of human congenital abnormalities, but it is broader than that, taking in to account other non-birth developmental stages, including puberty; and other non-human life forms, including plants.