The circadian rhythm is an internal biological clock that regulates a variety of physiological functions over a period of approximately 24 hours. These functions include sleep and wakefulness, hormone release, body temperature, digestion, and more. The concept of circadian rhythm is fundamental to understanding how our bodies function and how to optimize our health and well-being.

It's called "circadian," a term derived from the Latin "circa diem," meaning "about a day." This rhythm is generated naturally by the body, but it's also influenced by external cues like light and temperature, which can help "reset" the body clock. The sleep-wake cycle is probably the best-known of the circadian rhythms.

Exposure to light, especially daylight, is a key factor that helps regulate our body clock. For example, morning light helps signal to the body that it’s time to wake up and get ready for the day. Similarly, darkness signals that it’s time to get ready for sleep. Electronic gadget screens can interfere with this signal, which is why it’s often recommended to turn them off an hour or two before bedtime.

A healthy circadian rhythm is crucial for good sleep quality, which in turn affects overall health and well-being. It is therefore important to maintain a regular sleep and wake routine, to expose yourself to natural light during the day, and to have a healthy sleep environment. A quality mattress, like our alba Original mattress, with its 100% natural latex welcome, can also contribute to better sleep by providing optimal support and comfort, thus promoting a healthy circadian rhythm.