Professor Antonio Paolucci, a Vatican museum director has revealed that Sistine Chapel frescoes by Michelangelo are facing the risk of being damaged by visitors’ sweat.
Dust and hair are also potential enemies.
These rather shocking news came at the end of a month long clean up of the famous chapel.
Mr Poalucci told reporters that people sweat, breathe and produce dust, thus damaging the beautiful frescoes.
He added that in order to preserve the Sistine chapel frescoes for future generation he will have to speak with the technicians about the climate control machine and get them updated.