Scottish scientists have claimed that had identified the biological clock of all living things. The universal ancient body clock, which helps regulate the behaviors of all forms of life, has remained unchanged from the earliest forms of life on Earth.

Researchers at the Cambridge University’s Institute of Metabolic Science identified 24-hour rhythms in red blood cells for the first time.

The finding is important as circadian rhythms have always been considered to be linked to DNA and gene activity, but red blood cells do not have DNA.

Speaking on the discovery, one of the researchers said, "This groundbreaking research shows that body clocks are ancient mechanisms that have stayed with us through a billion years of evolution.”

The breakthrough is expected to help scientists to get to the bottom of the secrets of sleep and find cure for conditions like jet lag and diseases such as diabetes and cancer.

The discovery can also help scientists to find new ways to provide relief to pilots, nurses and other workers who work in odd hours.