Brainwave frequencies refer to the electrical activity in the brain, measured in hertz (Hz). These frequencies are categorized into different types based on their speed: Delta waves (0.5-4 Hz) are associated with deep sleep, Theta waves (4-8 Hz) are linked to relaxation and creativity, Alpha waves (8-12 Hz) occur during calm, alert states, Beta waves (12-30 Hz) are related to active thinking and problem-solving, and Gamma waves (30 Hz and above) are connected to high-level information processing. Each brainwave frequency plays a crucial role in our mental states and overall well-being. For instance, Delta waves help with restorative sleep, while Alpha waves promote a sense of calm and focus. Understanding these frequencies can aid in practices like meditation and mindfulness, enhancing mental clarity and emotional balance.