Well it depends, if you sweat a lot then yes shower is need everyday! Now if youre basic... I suggest showering Monday-Wednesday-Friday and deodorant!
The left side of your heart pumps oxygenated blood to your body.
The right side pumps blood to the lungs to receive the oxygen and it goes out of the left side to distribute it throughout the body.
Hope this helps! If you have any questions, just ask!