Modernization of Orang Asli in Malaysia exposed them to lifestyles related diseases. This study was conducted to evaluate the effects of modernization on lifestyles related diseases amongst Orang Asli at Kuala Boh Selangor Malaysia. Data on demographics, health and treatment seeking preferences were collected through questionnaires and analyzed. Participants were males and females (n=35), mean age 40.8 from Muslim Semai group. Most of the females are homemakers, and male does less labour work. Less mobility exposed them to health-related diseases. The modern way of life has exposed Orang Asli toward a lifestyles related diseases in Malaysia. Keywords: Orang Asli; Health seeking behaviours; Lifestyle-related diseases, Modernization of Orang Asli eISSN 251T-7528 © 2017 The Author. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/T.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.