， they can take heart.
For while they may feel greasy and unattractive at the moment， by middle age they will be the envy of their peers.
sufferers’ cells have built-in protection against ageing that is likely to keep them looking younger than their years.
So while their former classmates bemoan the appearance of crow’s feet and other wrinkles and crinkles，
from King’s College London researchers who studied tiny structures called telomeres.
These are caps on the ends of chromosomes that protect the DNA in them from damage， much like caps on shoelaces prevent fraying. Thought of as tiny biological clocks， so short that cells die.
studies have found men and women with long telomeres tend to be biologically younger than those of the same age but with shorter ones. All in all， telomeres are considered so important that the scientists who discovered them seven years ago were awarded a Nobel Prize for medicine.
The King’s College study measured the telomeres in the white blood cells of more than 1，200 twins，
Telomeres were significantly longer in those who had a spotty adolescence，
patients seems to age more slowly， with wrinkles and thinning appearing much later.
It was thought excessive oil production contributed to their Peter Pan looks， but the rest of the biology was unknown.
research from the same university has suggested adults with lots of moles may also look younger for longer. The latest study is reported in the Journal of Investigative Dermatology.
Longer telomeres also tend to signal stronger bones and a less frail old age， meaning dealing with spots may have more than one silver lining.
All of the study participan as teenagers.