Let’s Start With the Big One: Life Expectancy
In a studies involving of over 4,500 people, nearly 9,000 people, and a whopping 240,000 people, sitting has been independently associated with increased mortality (i.e. an early grave) and higher risk of cardiovascular disease regardless of physical activity levels.
A 13-year study found that women who sat for 6 or more hours a day were over 94% more likely to die during the study than those who sat for 3 hours a day.
Women who sat the most were 3 times more likely to die from heart disease as those who sat the least, regardless of specific exercise level.
Men who sat more than 23 hours per week had a 64% higher chance of dying from heart disease than men who sat less than 11 hours per week.
As Mayo Clinic Cardiologist Martha Grogan explained:
For people who sit most of the day, their risk of heart attack is about the same as smoking.

