TY - GEN AU - Kelly,Michael P AU - Barker,Mary TI - Why is changing health-related behaviour so difficult? SN - 1476-5616 PY - 2017///0329 KW - Alcohol Drinking KW - epidemiology KW - Diet KW - psychology KW - Epidemics KW - prevention & control KW - Exercise KW - Health Behavior KW - Health Knowledge, Attitudes, Practice KW - Health Policy KW - Humans KW - Obesity KW - Psychological Theory KW - Sedentary Behavior KW - Smoking KW - United Kingdom N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/j.puhe.2016.03.030 ER -