Which type of waves are prominent during deep sleep?

Delta waves are indeed the prominent brain waves during deep sleep. These waves have a high amplitude and low frequency, typically ranging from 0.5 to 4 Hz. They play a crucial role in the sleep cycle and are associated with the most restorative stages of sleep, allowing for healing and recovery in both the body and brain.

During deep sleep, also known as slow-wave sleep, the body experiences decreased heart rate and blood pressure, leading to physical restoration and memory consolidation. The presence of delta waves indicates that the brain is in a state of rest, with minimal cerebral activity compared to other sleep stages, which is vital for overall health.

In contrast, theta waves are more prominent during light sleep and relaxation, alpha waves are associated with wakefulness and calmness, while beta waves indicate a state of alertness and active thinking. Therefore, the characteristics and functions of delta waves during deep sleep highlight their significance in the sleep cycle.