CPD and Education library

Study and gain CPD points through OT’s online CPD exams, and access archived CPD and CET articles, Practice team resources and Skills guides in our Education library

Find out more

Science and vision

News and features about the latest scientific developments and advances in optometry, ophthalmology and eye medicine

Find out more

Professional support

News and features about the latest developments relating to professional support from across optics. This includes updates from optical organisations such as the AOP and the GOC

Find out more

In practice

News and in-depth features about business management and career development in optics

Find out more


Explore the latest UK and global jobs in the optical sector for optometrists, dispensing opticians and more

Find out more

Sleeping in room with artificial light linked to obesity

Women who sleep in a room with a television or light on are more prone to weight gain according to a new study

weighing scales

New research has found a connection between sleeping in a room with artificial light and obesity.

The study, which was published in JAMA Internal Medicine, reports on a cohort of 43,722 women.  

The presence of artificial light while sleeping was linked with an increased risk of weight gain and obesity, particularly in women who slept in a room with a television or light on.

The research suggests that lowering exposure to artificial light while sleeping might be useful in obesity prevention.

They highlight that exposure to artificial light may affect sleep quality, which can then influence diet and exercise patterns.

Women who had a higher exposure to artificial light at night were less likely to have consistent waking and bedtime patterns and more likely to take longer to fall asleep, wake up at night and take naps.

Image credit: Pixabay