hi!. I need to translate a text and I found the word 'sap'. I looked it up in the dictionary, and the definition is: 'Zapar, minar una muralla o fortificación', but I can't find the right equivalence in this context, so if you could help me, it would be great!
this is the text:
Smoking also stains teeth, causes saggy, graying skin and saps your lung capacity.