In Ancient times, sickness was thought to be caused by an excess of blood. Therefore, doctors would cut into their patients and let some of the blood out to help cure them. This theory advanced into thinking that the human body needed all of its "humors" to be balanced: blood was one of the humors so if  the doctor thought you had an imbalance, they would 'let' some of the blood out. 
        
             
        
        
        
1. Why is this text being written?
2. Who is this text being written for?
3. What is the author's purpose? 
        
             
        
        
        
Answer:
here, hope this helps :)
Explanation:
Dear Dahlia, 
Paris is unbelievable at night! It's 10 pm, and I'm writing to you from a café. We arrived here two days ago. My friend Pierre picks me up. We toured the city during the day, and at night, we did walk along the River Seine. Today we are dining in Montamarte, and we visited the Louvre Museum. I did not like the food in Montmartre, but, I did love the area. I hope all is well with you! Don't work too hard!
Love, 
Michelle
 
        
             
        
        
        
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