The change in Helen's work hours (night shift) may cause Helen to be at increased risk for heart disease. The effects of shift work can manifest in various forms of illness, one is problems in the cardiovascular system. The reason is because the cardiovascular system in all mammals is highly organised with regard to time and when the time is different organized (the time we should sleep we work) that can lead to certain conditions.
About 1,500 miles separate Houston, Texas from Ogden, Utah.
City-states were powerful cities in italy and surrounding towns and country side. they are governed independently
Answer:
Sparta was ruled by two kings, who ruled until they died or were forced out of office. Athens was ruled by archons, who were elected annually. Thus, because both parts of Athens' government had leaders who were elected, Athens is said to have been the birthplace of democracy. Spartan life was simple.
Since Tony belongs with the peer culture the nerds, it is expected that Tony is into geeky things and mostly involved with academic activities in which his brain is being used in participating such activities and engage in activities that uses cognitive functions.