Answer:
Ways that you can stay healthy and not getting sick in the first place are washing your hands,covering your mouth when coughing/sneezing,(also helps with not spreading pathogens) get a lot of vitamin d, getting enough sleep,and eating healthy
The kidneys maintain our body's water balance by controlling the water concentration of blood plasma. The kidneys also control salt levels and the excretion of urea. Water that is not put back into the blood is excreted in our urine.
9 ½ hours
The average amount of sleep that teenagers get is between 7 and 7 ¼ hours. However, they need between 9 and 9 ½ hours studies show.