"Mon Amar Deho Ghori" a famous song sung by Fakir Alamgir might create a question in your mind, "Do I really have a clock inside of me?". Science says, yes, you have.

Not getting enough sleep leaves us tired throughout the day. But your body's clock also affects mood, mental alertness, hunger, and heart function. All of us have the ebb and flow of lifestyle, the daily rhythms that shape our days. Probably the most basic daily rhythm we live by could be the sleep-wake cycle, which relates to the cycle of the sun. It makes you feel sleepy whilst the evening hours wear on, and wakeful as your day begins.

Research has been discovering that your body's clock is in charge of more than sleep and wakefulness. Other systems, like hunger, mental alertness, and mood, stress, heart function, and immunity also operate on a regular rhythm. The existence of the biological clock may be particularly apparent when it is off-kilter: such as shift work can throw our normal patterns out of whack and have a toll on physical and mental health.

The interactions of the clock are complex and their effects on different body systems are intricate, but researchers are starting to comprehend more about the way the nuts and bolts of the clock work and affect each system of your body, from your hearts to your moods. Considering that the biological clock is, actually, a biological entity, things can make a mistake with it that will have less related to lifestyle or the environmental surroundings, and more related to the mechanisms of the clock itself. As an example, there is more to the clock-diabetes link than simply turning our sleep cycle around, though sleep can change lives.

The writer works at Eskayef Pharmaceuticals Limited. E-mail: ekhtearuap@gmail.com