Questions & Answers about Το στήθος του είναι ζεστό.
In Greek, body parts and many other possessed nouns are very often expressed as:
definite article + noun + weak possessive pronoun
So:
Το στήθος του = literally something like the chest of him, but naturally it means his chest.
This is completely normal Greek. You do not usually translate the article separately into English in this kind of phrase.
A very common pattern is:
- το χέρι μου = my hand
- τα μάτια της = her eyes
- το κεφάλι του = his head
So in this sentence, το is exactly what you should expect.