Your activity levels during the day can have a profound effect on how you sleep at night
Do you ever find yourself unable to sleep after staying on the sofa watching TV all day? Or maybe you’ve found that the days you’re out and about and moving your body leave you shattered by bed time.
A distinct link between how much we exercise during the day and how well we sleep at night has been found. Researchers have revealed that lifting weights, particularly in later life, may enhance our sleep quality and reduce insomnia.
Published in Family Medicine and Community Health, the study analysed data from 24 clinical trials involving 2,045 individuals aged 60 and older. Researchers examined the effects of various types of exercise on sleep and found that strength or resistance training was the most effective at reducing insomnia.
Researchers used the Pittsburgh Sleep Quality Index (PSQI) to reveal that resistance exercise improved people’s PSQI score by 5.75 points. In comparison, aerobic exercise improved the score by 3.76 points, while combination exercise resulted in a 2.54 improvement on the sleep scale.
But exactly how does exercise improve your sleep? Here’s everything you need to know about how being active can ease insomnia.
Can exercise help improve our sleep?
“Yes, exercise is a key component in improving sleep, for multiple reasons,” says Dr Donald Grant, GP and senior clinical advisor at The Independent Pharmacy.
“Firstly, it helps regulate body temperature, a key part of circadian rhythm.”
Dr Hana Patel, NHS GP and resident sleep expert for Time4Sleep, agrees and adds: “Exercising can also help to regulate the sleep-wake cycle by increasing the production of melatonin – a hormone that helps us fall asleep and stay asleep.”
Exercise can also help lower our anxiety and stress levels, making it easier to drift off.
“Regular movement can increase endorphins, giving us a massive mood boost, and offers an effective distraction from daily stressors,” explains Grant.
“By reducing stress, people can promote better rest and avoid extreme fatigue.”
Some research also suggests that exercise could reduce the risk of sleep disorders.
“Regular exercise may reduce the risk of conditions such as insomnia and sleep apnea by improving sleep quality through the promotion of deep sleep and reduction of sleep disturbance,” says Grant.
What types of activity can help improve sleep?
“Aerobic exercises that increase your heart and breathing rates can make falling asleep easier by lowering your blood pressure and reducing stress,” says Patel.
“For example, running, cycling, or walking are perfect for tackling any anxiety that is keeping you up at night.”
Patel also recommends incorporating some resistance and strength training into your weekly exercise regime.
“A mix of aerobic exercise and strength training can be beneficial, like lifting weights and using resistance bands,” says Patel. “But remember to only do what feels comfortable and gradually increase the difficulty as you progress.”
Gentler exercises, such as yoga, are also believed to enhance our sleep.
“Yoga is also great for improving mindfulness and reducing stress, helping our bodies relax and reducing tension,” says Patel.
“Deep breathing techniques can help to improve sleep quality and relax the nervous system, allowing us to properly unwind before bed.”
Can exercising too close to bedtime disrupt your sleep?
“Depending on the type of exercise, working out too close to bedtimes could disrupt sleep routines,” notes Grant.
“In particular, strenuous routines such as HIIT (high-intensity interval training) could prove too much, stimulating the nervous system and leaving people more alert, making it difficult to fall asleep.”
What is the best time to exercise?
“A common misconception is that people must work out in the evening to attain sleep benefits from fitness,” says Grant.
“However, even by working out in the early morning or afternoon, people can regulate temperature and increase hormone production come nighttime.
“I recommend exercising in the morning or afternoon, depending on schedules and commitments and avoiding any exercise after dinner, if people struggle with sleep. This can allow people to indulge in more intense exercises without disrupting sleep hygiene.”
