Sitting for too long is the new smoking. We've known for several years now that regular exercise plays a key role in preventing disease and early death. However, recently there is additional research that is pointing to a dangerous path many people are taking by being inactive most of the day.
This is more evident in people that will go to the gym and workout really hard for 30-40 minutes each day, but will spend the rest of the day either sitting or lying on the sofa. This sitting or lying is proving to be very harmful for health.
As it turns out, the more time we spend sitting or lying on the couch the higher the risk of various diseases, such as diabetes, high blood pressure, heart disease, etc.
In addition to regular exercise, we should limit sitting time to 30 minutes maximum. We should get up about every 30 minutes and walk around a bit.
The theory behind this new research is that blood becomes thicker when we sit or lie for too many minutes at a time. This thickening of the blood can lead to poor circulation which can in turn lead to high blood pressure, strokes, and heart disease. These are in addition to weight gain from being inactive.
This doesn't mean that we can't take a break on the couch, but we should avoid lying down to just a few minutes, and when sitting, get up and stroll every few minutes.