 
 
                      	It is often said that weight gain or loss is related to whether a person has a fast or slow metabolism. For instance, those with a fast metabolism are said to burn off calories quickly, whereas those with a slow metabolism burn them off more slowly. How true this is may be scientifically debatable. Som […]
 
 
                      	 
 
                      	 
 
                      	 
 
                      	 
 
                      	 
 
                      	 
 
                      	 
 
                      	