"High Cholesterol? Change Your Lifestyle to Lower It" by SingHealth, 12 April 2021, http://www.healthxchange.sg Physical inactivity and a diet rich in saturated fats can lead to high cholesterol. The Department of Dietetics at Singapore General Hospital explains the functions and types of cholesterol in the blood. High Cholesterol ​can be caused by various factors such as obesity, physical inactivity, and too much saturated and trans fats. What is cholesterol? Cholesterol is a waxy, fat-like substance that is found in all cells and tissues in our body. It is essential in maintaining normal body function by making useful hormones,