In this lesson, we'll learn the definition of the Law of Conservation of Mass, sometimes called the Conservation of Matter. This lesson explores the discovery of this important principle and covers a few examples of how it works. GED Science: Help and Review / Science Courses.
Poor circulation can be caused by a series of cardiological and neurological issues, systemic health conditions, obesity, poor lifestyle choices and diet preferences as well as bad habits like smoking or alcoholism.
Obesity can occur at any age, even in young children. But as you age, hormonal changes and a less active lifestyle increase your risk of obesity. In addition, the amount of muscle in your body tends to decrease with age. This lower muscle mass leads to a decrease in metabolism. These changes also reduce calorie needs, and can make it harder to keep off excess weight.