It might seem a total wonder that a smoker won’t quit after hearing that puffing away is a leading cause of death, or that an obese person can’t shed a few pounds after learning that lethal ailments loom for the overweight.
But scientists have come up with a host of reasons why humans stick to bad habits, and they are zeroing in on what to do about it.
Read more – http://www.livescience.com/humanbiology/061205_bad_habits.html
Posted by E-LAM 
