India, May 27 -- A new study by scientists at the University of Auckland has found that sunlight can help the body's immune system fight infections more effectively.

In the study, the researchers focused on neutrophils, a type of white blood cell that's very common in our body. These cells are the first to respond to infections and work by attacking and killing harmful bacteria.

To do their research, the scientists used zebrafish, a small fish with genes similar to humans. These fish can also be made transparent, which helped scientists watch what's happening inside their bodies in real time.

The study, published in Science Immunology, discovered that neutrophils have an internal body clock, called a circadian clock, that helps them tell...