A TEENAGER diagnosed with an aggressive brain tumour and given 12 to 18 months to live spotted the first sign of the deadly disease in her eye. Joscelyne Kerr, 19, was finishing school in 2023 ...

ETH Zurich researchers found that pupil size changes during sleep, indicating shifts in brain activity. This could help ...

For the first time, researchers have been able to observe how the pupils react during sleep over a period of several hours. A look under the eyelids showed them that more happens in the brain during ...

A new study reveals that pupil size fluctuates constantly during sleep, reflecting changes in brain activation levels.

The pupil responds to light, which is essential for our vision and how we see our surroundings. Three known mechanisms change ...

We use personal information about children and families to enable it to provide relevant services to them and to carry out specific functions for which it is responsible. We will not use the data for ...

The difference in pupil size between inhalation and exhalation was large enough to theoretically affect vision. The study also showed that the function is intact in people born without the olfactory ...

Two new papers describe a significant advance in understanding the complex functions of the metabolic network. Two papers published today in the journal Nature describe a significant advance in ...

Insulin is a hormone that allows glucose in the blood to enter cells, providing them with the energy to function. A lack of adequate insulin plays a key role in the development of diabetes.

(Dboybaker/Flickr, CC BY 2.0) Indeed, this reflex is so reliable that doctors use it to assess brain function. If a pupil fails to react to light, it could signal a medical emergency such as a stroke.