It is hard to live without a good night’s sleep. However, 22% of the people in industrialised countries do that regularly, when they work in shifts, including those during the night. Working in different shifts disrupts the body’s circadian rhythm—a natural process in our body that regulates the sleep-wake cycle.
New research reveals that a unique Indian skink species arrived on the subcontinent by rafting across the ocean from Southeast Asia millions of years ago, a journey made possible by fluctuating sea levels.