Psychologists suggest that to cure cruelty

According to the passage, it is apparent that

1. 
   more people are beginning to realize the importance of exercise in losing weight
   
2. 
   walking briskly doesn't help one to lose weight
   
3. 
   more people choose to lose weight merely by dieting
   
4. 
   one should walk at least three miles a day for a quick result
   

2. The writer states that

1. 
   if they knew the caloric expenditure charts, people would be motivated to take up exercise
   
2. 
   people are demoralized upon seeing how much activity is needed to burn off a certain number of calories
   
3. 
   people can speed up the process of losing weight by choosing vigorous exercise
   
4. 
   leading a routine life plays an important part in long-term maintenance of body weight