Resveratrol, Melatonin, Low Calories diet and long life

News about a food supplementary: extract from red wine called Resveratrol caught my attention.  In lab it has shown it can extend life for 20% similar for very healthy people who have a very healthy life style.  I remember 20 years ago it was melatonin that created all the health buzz, which is hardly mentioned these days?  Will Resveratrol follow the same path, don't know.  But the promise of living healthy till 100 years old and dying peacefully in ones sleep is so attractive that people, and I included, welling to give it a try.