Healthy aging depends on the body's ability to repair and renew itself over the years. One of the most important mechanisms in this process is sleep, but it is not just the number of sleep hours that matters – the habits preceding bedtime also affect the quality of rest and long-term health.
According to experts, there is no need for a complex evening routine or dozens of nutritional supplements. In fact, a few simple and consistent actions can improve sleep, balance the biological clock, and help maintain the body and brain over the years.
1. Going to sleep and waking up at consistent times
The most important habit, according to doctors, is maintaining sleep hours that are as consistent as possible.
Dr. Catherine Nguyen–Ward explains that regular sleep is one of the most significant factors for longevity and healthy aging. According to her, the body needs a regular rhythm to perform the recovery and repair processes that take place at night.
A large study that included nearly 61,000 adults found that people who maintained regular sleep hours enjoyed a lower risk of mortality from any cause, compared to those whose sleep hours were irregular. The researchers even found that sleep regularity was a more significant measure of health than sleep duration itself.
The experts recommend aiming for at least seven hours of sleep a night and treating bedtime like an appointment that cannot be canceled.
2. Dimming the lights before bedtime
Light is one of the central factors that direct our biological clock.
Exposure to strong light in the evening signals the brain to stay alert and may delay the secretion of melatonin – the hormone that helps with falling asleep. Therefore, it is recommended to gradually reduce the lighting in the house during the hour or two before bedtime and avoid glowing screens in bed as much as possible.
According to the experts, even if the house is not darkened completely, moving to a calm and less illuminated atmosphere helps the body understand that it is time to wind down and prepare for sleep.
3. Finishing eating at least two hours before bedtime
Late meals can impair sleep quality and burden the digestive system.
According to Dr. Nguyen–Ward, eating at late hours is associated with a disruption in blood sugar balance and an increase in the levels of the stress hormone cortisol. Over time, such a habit may increase the risk of obesity and metabolic syndrome.
The experts recommend finishing the last meal about an hour and a half to two hours before getting into bed. If hunger arises nonetheless, it is advisable to choose a light snack containing protein and dietary fiber, such as yogurt with berries or a slice of whole-wheat bread with peanut butter.
4. Avoiding alcohol before bedtime
Many feel that a glass of wine in the evening helps them fall asleep, but in practice the effect is more complex.
Alcohol may indeed cause a feeling of fatigue at the beginning of the night, but later on it impairs sleep quality, reduces the duration of REM sleep essential for the brain, and causes multiple awakenings. In addition, alcohol suppresses melatonin production and disrupts the biological clock.
Studies show that even moderate amounts of alcohol can impair the deep sleep stages, which are important for memory, learning, and emotional processing.
<br>Two more things that can help
Aside from nighttime habits, experts also recommend:
Exposure to natural light in the morning hours, which helps reset the biological clock.
Regular physical activity, which improves heart health, sleep quality, and mood.
Healthy aging does not depend on magic solutions. In fact, simple habits such as a regular bedtime, dim lighting in the evening, avoiding heavy meals before sleep, and reducing alcohol consumption can significantly affect the health of the body and brain over the years.
Sometimes, the way to stay young begins precisely with what you do in the hour before bedtime.