Understanding Why Sleepiness Sets In When It's Cold.

On a calm autumn day with a chilly breeze, one might expect to feel more alert as the weather gets colder. However, the reality is that drowsiness often creeps in, accompanied by a sense of fatigue in the cold. Let's explore the scientific reasons behind this phenomenon.

 

Additionally, increasing the intake of foods rich in tryptophan, a substance that promotes serotonin production, can be effective.

 

Firstly, when the temperature drops, muscles contract to generate heat in an attempt to overcome the cold. This increased energy expenditure can lead to a sensation of fatigue. Additionally, our body tends to lower its temperature slightly when falling asleep. Consequently, the brain may misinterpret the drop in body temperature due to the cold as a signal to 'fall asleep,' leading to an influx of drowsiness.

 

Moreover, Seasonal Affective Disorder (SAD), known as 'winter blues,' could be a contributing factor to sleepiness. As winter approaches, drowsiness becomes more frequent, accompanied by a decrease in motivation and a feeling of lethargy. These symptoms are often associated with a reduction in sunlight exposure. As the amount of sunlight diminishes in autumn and winter, our bodies may struggle to produce an adequate amount of the happiness hormone, serotonin. Insufficient serotonin levels can contribute to feelings of depression and fatigue.

 

Therefore, if you consistently experience drowsiness and lethargy, making a conscious effort to enjoy sunlight can be beneficial. Outdoor walks or sunbathing during lunchtime, when sunlight is relatively abundant, are recommended. Particularly as winter approaches, mornings may start before the sun rises, and using bright lights immediately upon waking can be helpful. During sleep, maintaining complete darkness is advisable, as light stimulation can reduce the secretion of the sleep hormone, melatonin.

 

Additionally, increasing the intake of foods rich in tryptophan, a substance that promotes serotonin production, can be effective. Tryptophan is an essential amino acid that our bodies cannot produce on their own, and it is found abundantly in various foods such as red meat, beans, egg whites, bananas, and chocolate. Lightly massaging the temples or forehead and engaging in deep breathing or meditation can also assist in serotonin secretion.