Answer the questions below. Using NO MORE THAN THREE WORDS from the passage for each answer.

As well as the intensity, what else is important in sunlight for our circadian rhythm? [1]

What specific part of the day is the body at its warmest? [2]

What should night shift workers use to help them sleep? [3]

What type of person works equally well in the morning and the evening? [4]

What does our body clock make it easier to do after the winter? [5]

What should you avoid before bed to help you get a good night’s sleep? [6]