Could our sleep patterns really affect our risk of disease? Are you a night owl or an early bird? Our daily routines of activity and sleep might affect our chances of developing illnesses like type 2 diabetes and heart disease. A recent study published in the journal Experimental Physiology discove
The study found that people who stay up later have a lower ability to use fat for energy.Are you a night owl or an early bird? Our daily routines of activity and sleep might affect our chances of developing illnesses like type 2 diabetes and heart disease. A recent study published in the journaldiscovered that wake/sleep cycles modify our body’s preference for energy sources and cause metabolic differences.
The metabolic differences are related to how efficiently each group can utilize insulin to promote glucose uptake by cells for storage and energy consumption. Early birds, or those who like to be active in the morning, depend more on fat as a source of energy and are more active throughout the day with greater levels of aerobic fitness than “night owls.” Conversely, “night owls” use less fat for energy both at rest and during exercise.
Researchers found that early birds use more fat for energy at both rest and during exercise than night owls. Early birds were also more insulin sensitive. Night owls, on the other hand, are insulin resistant, meaning their bodies require more insulin to lower blood glucose levels, and their bodies favored carbohydrates as an energy source over fats.
Senior author Professor Steven Malin, Rutgers University, New Jersey, USA said: “The differences in fat metabolism between ‘early birds’ and ‘night owls’ shows that our body’s circadian rhythm could affect how our bodies use insulin. A sensitive or impaired ability to respond to the insulin hormone has major implications for our health. This observation advances our understanding of how our body’s circadian rhythms impact our health.
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