(1) We don't really fall in love; we jump in love – we are at the mercy of our chemical make-up.

(2) Chemicals are released in our brain when we are drawn to someone. (3) One of these, phenylethylamine, makes us feel very (EXCITE) ________ – everything seems (WONDER) ________.

(4) It's almost like flu: your face is flushed, your palms are (SWEAT) ________, you breathe (HEAVY) ________, you even feel a slight tingle in the hands and feet.

(5) Generally, people are attracted to opposites of (THEY) ________ – the organised person to the (ORGANISE) ________; the bookworm to the social butterfly.

(6) In the next stage of love, a hormone called oxytocin is released. (7) This plays an important role throughout our lives: it is a "cuddle hormone" and acts as a kind of infatuation chemical. (8) Childbirth and the noise of a baby crying also make it flow.