Rédaction Africa Links 24 with Karine Scheuermaier, Associate Professor in Physiology, Chair of Science Committee, South African Society for Sleep and Health, Member of the World Sleep Society, University of the Witwatersrand
Published on 2024-03-14 08:30:05
Sleep plays a vital role in our overall health, comparable to the importance of food and water. It is crucial for various brain functions and allows for necessary restorative processes to take place while we rest. Sleeping for a third of our lives, our bodies engage in activities like muscle relaxation, slowed breathing, decreased heart rate and blood pressure, and the clearance of toxins from the brain. During deep sleep, known as slow wave sleep, memories are consolidated and unnecessary information is discarded, preparing us for the following day.
Our sleep-wake schedule is governed by our biological clock, which aligns our activity with daylight and our rest with night time. Not sleeping at the right time can have detrimental effects on our health, leading to decreased cognitive performance, low energy levels, poor mental health, and a higher risk of developing conditions like Alzheimer’s, high blood pressure, and diabetes.
Disruptions in sleep, whether caused by sleep disorders like sleep apnoea or external factors like noise or violence, can have negative impacts on our well-being. Socioeconomic status can also play a role in sleep quality, as seen in studies in South Africa’s urban townships. Additionally, the use of electronic devices emitting blue light before bed can interfere with our circadian rhythms and lead to poor sleep quality.
To improve sleep habits, it is important to treat sleep with the same seriousness as diet and exercise. Creating a consistent sleep schedule, aiming for 7-9 hours of sleep per night, avoiding screens before bed, getting outdoor light exposure during the day, engaging in physical activity, and creating a conducive sleep environment are all essential practices. Avoiding alcohol and caffeine before bed, as well as seeking quiet, cool, and dark sleeping conditions, can also contribute to better sleep quality.
For more information on sleep health, individuals can visit the South African Society for Sleep and Health website. It is crucial to prioritize sleep and establish healthy habits to ensure overall well-being and optimal functioning.
