Sleep is essential for physical and mental health, as well as proper brain function. During sleep, the body repairs tissues, regulates hormones, strengthens the immune system and consolidates memories.
The amount of sleep a person needs varies according to age. Adults generally need between seven and nine hours of sleep each night, while teenagers require eight to ten hours. Children need even more sleep to support their growth and development.
A lack of sleep can lead to poor concentration, memory problems, irritability, fatigue and reduced decision-making ability. Over time, insufficient sleep is also associated with an increased risk of health problems, including heart disease, obesity and type 2 diabetes.
To improve sleep quality, it is important to maintain a regular sleeping schedule, reduce mobile phone use before bedtime, avoid caffeine late in the day and create a quiet, dark sleeping environment.
