Kaizen 2: Proper Seating & Sitting

It is a general notion amongst all that those working, sitting on comfortable chairs and under fan or in AC would be hale and healthy. But when it comes to the physical fitness they are the ones in real danger and need lot of precautions and tips.
Coming from a software industry let me share about how the seating and sitting should not be and should be for the employees.
Most of us intentionally or unintentionally end up sitting somewhat like shown in the below picture:



But this is how exactly it should be:



Follow this simple kaizen and be fit.