Which of the following should be avoided before bedtime to enhance sleep quality?

Heavy evening meals should be avoided before bedtime to enhance sleep quality because they can lead to discomfort and disrupt the digestive process during the night. Consuming a large or rich meal can cause gastric discomfort, increase the likelihood of acid reflux, and may interfere with the body's ability to enter the various stages of sleep. Heavy meals may also cause the body to work harder to digest food, which can keep the mind and body more alert, thus making it challenging to fall asleep.

In contrast, activities such as reading a book, taking a warm bath, or listening to calming music are often recommended for promoting better sleep. These activities can help relax the mind and body, allowing for a smoother transition into sleep.