PEOPLE in Portsmouth have been given tips on how to wipe out tiredness this winter.
NHS Choices has issued a list of tips to help combat winter tiredness and boost energy levels.
It says that fatigue during winter months is caused by the brain producing more of the sleep hormone melatonin as a result of less sunlight.
But it can be fought off by eating more foods high in vitamin D, such as oily fish, eggs and meat.
Another method of boosting energy levels is getting more access to natural daylight by opening blinds or curtains and by going on a short walk during the day.
Getting into a good sleeping routine and aiming to sleep for around eight hours is key, as is taking part in regular exercise.
Relaxation techniques can help with stress, which has been found to worsen fatigue, and eating plenty of fresh fruit and vegetables can help.
Dr Knut Schroeder said people whose daily lives are impacted may be suffering with depression or seasonal affective disorder (SAD).