# The Efficiency of Binaural Beats on Anxiety and Depression--A Systematic Review
## 4 Discussions
Further research is needed to establish evidence-based guidelines that can tailor the duration of exposure to maximize therapeutic benefits for different conditions and individual patient needs. As non-pharmaceutical methods, binaural therapy for stress and anxiety could have large population usability, considering different psychologically demanding workplaces or secondary anxiety and depression manifestations in auto-immune or neurological disorders [43]. As previously discussed in this review, anxiety and depression can emerge as significant complications for patients suffering from various diseases. One of the most common complications following a stroke is post-stroke depression [44; 45]. Binaural beats have the potential to assist both patients and caregivers in managing the challenges associated with neurological pathologies regardless of the specific characteristics of the condition. These auditory stimuli may help reduce stress and anxiety levels, thereby creating a more supportive environment for coping with neurological disorders. Furthermore, binaural beats may enhance patients' motivation and desire for rehabilitation. The therapeutic effects of binaural beats, which include promoting relaxation and reducing negative emotional states, can make patients more receptive to rehabilitation efforts and more committed to their recovery processes [46]. This increased motivation is crucial, as effective rehabilitation often requires sustained effort and a positive attitude. Incorporating binaural beats into rehabilitation protocols may also benefit caregivers, who frequently experience high levels of stress and burnout. By providing a non-invasive means of achieving relaxation and emotional stability, binaural beats can improve caregivers' well-being, enhancing their ability to provide efficient care. This holistic approach, addressing both the physical and psychological aspects of recovery, is essential for improving overall patient outcomes and ensuring a higher quality of life during and after rehabilitation. Therefore, using binaural beats holds promise for enhancing the efficacy of treatment strategies for neurological conditions [47]. Binaural beat therapy is considered cost-effective for multiple reasons [31]. First, the production of binaural beat audio tracks is relatively inexpensive, only necessitating basic audio editing software and a sound source. Once produced, these tracks can be digitally distributed at minimal cost, often offered for free or at a very low price on various platforms. Second, the equipment required to experience binaural beats is limited to a pair of stereo headphones, which are generally affordable and widely accessible. Binaural beats can be used at home without the need for frequent sessions with a professional, unlike traditional therapies, which can help eliminate ongoing costs associated with therapist visits. Access to high-quality binaural beat recordings is available through many apps and online resources without subscription fees, further reducing the financial barrier to entry. Binaural beats offer an economically accessible option for many people due to their low production and distribution costs, along with the ability to self-administer the therapy. After reviewing the studies that met the inclusion criteria, it is clear that most authors reported positive outcomes regarding the effect of BB on anxiety symptoms. Specifically, the authors noted reductions in blood pressure (BP) and heart rate (HR) [25; 26], which are physiological indicators of anxiety that are particularly prevalent in patients preparing for surgery. Furthermore, BB seems to influence a decrease in scores recorded in the final assessments of anxiety and depression, indicating increased relaxation among patients, potentially enhancing their quality of life. The authors preferred to use low frequencies, including alpha, beta, and delta waves, which can cause alterations in brain wave patternsobserved using EEG [48]. An example of this effect is demonstrated in the study by [PERSON] et al. [30].