Beta waves are a type of brainwave that occur when a person is awake and alert. They typically have a frequency range of 12 to 30 Hz and are associated with active thinking, problem-solving, and concentration. When you are engaged in tasks that require focus, such as studying or working, your brain produces more beta waves. These waves are important for cognitive functions and can indicate a state of heightened awareness. However, excessive beta wave activity may also be linked to stress and anxiety, as the brain remains in a constant state of alertness. Balancing beta waves with other brainwave types is essential for overall mental health.