that the food on our plate is safe to eat. 2016: Diabetes The WHO focused World Health Day 2016, on diabetes – a largely preventable and treatable non-communicable disease that is rapidly increasing in numbers in many countries, most dramatically in low- and middle-income countries. Simple lifestyle measures have been shown to be effective in preventing or delaying the onset of type 2 diabetes, including maintaining normal body weight, engaging in regular physical activity, and eating a healthy diet. Diabetes can be controlled and managed to prevent complications through diagnosis, self-management education, and affordable treatment. The WHO estimates about 422 million people in the world have diabetes, with the disease the direct cause of some 1.5 million deaths. The goals of WHD 2016 are (1) scale up prevention, (2) strengthen care, and (3) enhance surveillance. 2017: Depression: Let's Talk World Health Day 2017, celebrated on 7 April, aims to mobilize action on depression. This condition affects people of all ages, from all walks of life, in all countries. It impacts on people's ability to carry out everyday tasks, with consequences for families, friends, and even communities, workplaces, and health care systems. At worst, depression can lead to self-inflicted injury and suicide. A better understanding of depression – which can be prevented and treated – will help reduce the stigma associated with the illness, and lead to more people seeking help. 2018: Universal Health Coverage: Everyone, Everywhere World Health Day 2018 theme, "Universal Health Coverage: Everyone, Everywhere", emphasized the idea that health is a fundamental human right, and that all people should be able to have access to health care. The slogan for the day was "Health For All". Several events were held including a panel discussion on universal health coverage which was live streamed. 2018 marked the 70th anniversary of the World Health Organization's founding. 2019: Universal Health Coverage: Everyone, Everywhere The 2019 World Health Day theme was "Universal Health Coverage: Everyone, Everywhere", a repeat of the 2018 theme, with an emphasis on the idea that "Universal Health Coverage is the WHO's number one goal". To commemorate the 2019 World Health Day theme, the World Health Organization launched a campaign to sign a petition for health for all, held a Facebook live event, and shared information about primary health care and universal health coverage "statistics and facts". 2020: Support Nurses and Midwives The 2020 World Health Day theme took place