nuts are good for your

Nuts are good for you according to a report on TV this morning.  Eating nuts (just an ounce or so and not too salty) every day can extend your life span.  I like nuts so this was really exciting to me and I will be adding them to my shopping list.  But what really got my attention was the fact that eating nuts every day will "improve your life expectancy by 20%."  Really?  I'm pretty sure we all have exactly the same life expectancy.