The hepatitis B virus is a DNA virus belonging to the Hepadnaviridae family of viruses. Hepatitis B virus is not related to the hepatitis A virus or the hepatitis C virus. Some people with hepatitis B never clear the virus and are chronically infected.
Answer: Because you won't preform at your best level during work or school. this is because each age group, babies all the way to elderly people have certain amount of needed time for sleeping. when you don't get full hours your body hasn't had the time to rest and recollect energy.
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the energy needed to raise the temperature of 1 kilogram of water through 1 °C, equal to one thousand small calories and often used to measure the energy value of foods.
Sometimes a test can be incorrect or their signs haven't shown up yet, a follow up Is made so that there can be definite results