The earliest known account of a circadian cycle dates back to the fourth century B.C. when a Greek scholar, Theophrastus, wrote about a tree whose leaves closed at night and opened in the morning.

Circadian pacemaker neurons in the Drosophila brain display daily rhythms in the levels of intracellular calcium. These calcium rhythms are driven by molecular clocks and are required for normal ...

Takashi Maejima, Yusuke Tsuno, Shota Miyazaki, Yousuke Tsuneoka, Emi Hasegawa, Md Tarikul Islam, Ryosuke Enoki, Takahiro J. Nakamura, Michihiro Mieda Proceedings of the National Academy of Sciences of ...

A groundbreaking study has unveiled the neurological mechanisms behind why time seems to accelerate as we age, transforming the perception of days and years into a fleeting blur for many adults. This ...