Light and Exercise in Night-shift Workers

Light therapy will be applied by a Lumie Brazil fluorescent tube light box (10.000 lux) during the night shifts for 12 consecutive weeks

Physical exercise will be performed in a supervised environment on the days of the night shifts, either before the start of the shift (defined as a time period beginning no earlier than 2 hours before the start of the shift) or after the end of the night shift (defined as a time period ending no longer than 2 hours after the end of the night shift)