Why sitting is bad for you – Murat Dalkilinç
When you sit, you use less energy than you do when you stand or move. Research has linked sitting for long periods of time with a number of health concerns. They include obesity and a cluster of conditions — increased blood pressure, high blood sugar, excess body fat around the waist and abnormal cholesterol levels — that make up metabolic syndrome. Too much sitting overall and prolonged periods of sitting also seem to increase the risk of death from cardiovascular disease and cancer.
https://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/sitting/faq-20058005