eng Science and Education Publishing American Journal of Electrical and Electronic Engineering 2328-7357 2019-06-18 7 1 24 25 10.12691/ajeee-7-1-5 AJEEE2019715 article Kabita Agarwal 1 Arun Agarwal arunagrawal@soa.ac.in 2 Sumanshu Agarwal 3 Gourav Misra 4 Department of Electronics and Telecommunication Engineering, CV Raman College of Engineering, Bhubaneswar-752054, Odisha, India ,3Department of Electronics and Communication Engineering, Institute of Technical Education & Research, Siksha ‘O’ Anusandhan Deemed to be University, Khandagiri Square, Bhubaneswar-751030, Odisha, India School of Electronic Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland 4School of Electronic Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland Mental illness is often known as mental disorder. It can be defined as a behavioral or mental state that can cause some significant amount of distress or impairment of personal functioning. It is a global issue. Most people in the world will be affected by mental or neurological disorder at some point in their lives. Around 450 million individuals have been affected from mental illness. Wearable devices and smartphones may soon be able to help people who suffer from depression, bipolar disorder, schizophrenia, suicidal thoughts and other disorders by monitoring their activity physical symptoms and social interactions for early warning signs of trouble. In this report we have described how sensing technologies can be useful to monitor and diagnose patients and their behavior. So that it would be easy to detect mental illness. http://pubs.sciepub.com/ajeee/7/1/5/ajeee-7-1-5.pdf mental illness wearable devices smartphones sensors