A person who studies reasons for rising and falling populations is a Demographer
A scientist who studies the growth and density of populations and their vital statistics is known as a demographist!
A person who studies public epidemics is called an epidemiologist. They investigate patterns and causes of diseases in populations to help prevent and control outbreaks.
There are many people who study the human body. I thought of 69 studiers of the human body. I think there might be more, but these are all of the studiers I could think of.adenologist-a person who studies the exocrine and endocrine glandsallergist-a person who studies allergiesanatomist-a person who studies the parts of the bodyandrologist-a person who studies the male reproductive systemanesthesiologist-a person who studies anestheticsangiologist-a person who studies the circulatory and lymphatic systemsanthropologist-a person who studies the origin of the human bodyarteriologist-a person who studies the arteriesaudiologist-a person who studies hearingauxologist-a person who studies the growth of the human bodybronchologist-a person who studies the trachea, bronchi, and bronchiolescardiologist-a person who studies the heartcariologist/cytologist-a person who studies the cells of the human bodycephalologist-a person who studies the headcoprologist/scatologist-a person who studies fecescraniologist-a person who studies the skulldermatologist-a person who studies the skindesmologist-a person who studies ligamentsdiabetologist-a person who studies diabetesembryologist-a person who studies embryosendocrinologist-a person who studies the endocrine systementerologist-a person who studies the small and large intestinesenzymologist-a person who studies enzymesepidemiologist-a person who studies epidemicsfetologist-a person who studies fetusesgastroenterologist-a person who studies the digestive tractgastrologist-a person who studies the stomachgynecologist-a person who studies the female reproductive systemhematologist-a person who studies the blood and blood-producing organshepatologist-a person who studies the liverimmunologist-a person who studies the immune systemiridologist-a person who studies the iris of the eyekaryologist-a person who studies cell nucleikinesiologist-a person who studies the movement of the bodylaryngologist-a person who studies the larynxlymphologist-a person who studies the lymphatic systemmyologist-a person who studies musclesnasologist/rhinologist-a person who studies the nosenephrologist-a person who studies the kidneysneuroendocrinologist-a person who studies the nervous and endocrine systemsneurologist-a person who studies the nervous systemneurophysiologist-a person who studies the functions of the nervous systemnutriologist-a person who studies nutritionodontologist-a person who studies teethoncologist-a person who studies cancerophthalmologist-a person who studies the eyesorganologist-a person who studies anatomical organsosteologist-a person who studies bonesotolaryngologist-a person who studies the ears, nose, and pharynxotologist-a person who studies the earspharyngologist-a person who studies the pharynxphlebologist-a person who studies veinsphysiologist-a person who studies the functions of the parts of the bodypneumologist/pulmonologist-a person who studies the lungsproctologist-a person who studies the large intestineradiologist-a person who studies x-raysreflexologist-a person who studies reflexessacrologist-a person who studies the internal organsserologist-a person who studies blood serumsexologist-a person who studies sexsplenologist-a person who studies the spleenstomatologist-a person who studies the mouthtocologist-a person who studies childbirthtrichologist-a person who studies the hair and scalpurologist-a person who studies the urinary and male reproductive systems
An anthropologist who studies ancient bones is called a bioarchaeologist or a physical anthropologist. They analyze skeletal remains to learn about past populations, their health, diet, and lifestyles.
A person who studies bees is called an apiologist or a melittologist. These scientists research the behavior, ecology, and conservation of bees to better understand their role in ecosystems and agriculture. Their work is crucial for helping to protect and support bee populations worldwide.
A person could have a hard time falling asleep for many reasons. Too much adrenaline, caffeine or stress could all lead to difficulty in sleeping. Some people are naturally light sleepers or are just wired in such away that have a hard time falling asleep.
What is the name of a person that studies organisms
a person that studies gems is called a gemologist.
A person who studies death is a thanatologist. If you are talking about a person who studies the business of death and burial, that is a funeral director.
A person who studies animals is called a zoologist.
Some may be either:Their falling over while sitting up.If your having a conversation, it takes them a lot longer than normal to reply.Their already asleep.And some other obvious reasons/signs.
A person who studies viruses is a virologist, although a microbilogist prabaly studies them, too.