While some people can spring out of bed at six in the morning and go straight into their day, others prefer to wake up later as they’re most productive in the afternoon or evening. This difference is due to your chronotype – the biological tendency to prefer certain times of day for sleep, waking and activity.
But these aren’t the only factors affected by your chronotype. A growing body of research also suggests that your chronotype can affect the benefits you see from exercise.
People who naturally rise early and feel sharpest in the morning are “early chronotypes”, whereas those who prefer to wake later and function better in the afternoon or evening are “late chronotypes”. People who fall in between are “intermediate chronotypes”.
Your chronotype is determined by your circadian rhythms – the body’s natural daily cycles that repeat around every 24 hours. Although these are strongly influenced by our environment, they function even without external cues such as daylight and food. These rhythms affect our physiology, behaviour and health.
Our circadian rhythms are controlled by the body’s circadian system, which is made up of tiny biological clocks composed of proteins, which are found in organs and tissues. These clocks rely on genes that help coordinate when different processes happen, such as when we feel...
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