April 22, 2013 12:16 pm Can Too Much Sitting Cause Back Problems? Sitting in a chair properly can prevent back and shoulder pain. Dr. David Borenstein, an arthritis and rheumatism specialist, joined NBC4 to explain more. Local 2:13 Public health expert reacts to RFK Jr. cabinet pick 1:37 Whooping cough cases on the rise 2:13 Why a public health pro fears RFK Jr. could increase DC health care inequality 2:27 How healthy are sugar alternatives? 3:10 How a change in sunlight can affect your mood
