NCDs: A Global Crisis
Non-communicable diseases (NCDs) represent the world's leading cause of death, accounting for a staggering 71% to 75% of all global fatalities, with approximately
43 million lives lost annually. In India, this figure exceeds 60%. The primary culprits behind these deaths are cardiovascular diseases, cancers, chronic respiratory conditions, and diabetes. Worryingly, these are no longer exclusively diseases of affluence; over 80% of premature NCD deaths now occur in low- and middle-income countries. Dr. Etienne Krug, a Director at the WHO, emphasizes that prevention is paramount and must be driven by policy changes initiated at the micro-governance level, specifically by city governments. A decentralized public health system is crucial for effectively addressing the burgeoning burden of these diseases, making prevention an integral part of every city's public health infrastructure.
Urbanization and Shifting Health
As more than half of the global population now resides in urban areas, with projections indicating this will rise to 70% by 2050, cities are recognized as agile centers for public health initiatives. Dr. Krug advocates for activating mayoral systems, as mayors are deeply connected to their communities, making the divestment in public health monitoring more cost-effective. The disease landscape has dramatically shifted from infectious ailments to NCDs, driven by factors like tobacco and alcohol consumption, and physical inactivity. While tobacco awareness campaigns exist, tobacco consumption still claims seven million lives annually, underscoring the need for aggressive, city-led preventive campaigns. Urban residents often face greater exposure to risk factors such as air pollution, unhealthy food environments, and unsafe streets compared to their rural counterparts. Cities, with their intimate local knowledge, are ideally positioned to implement targeted, effective solutions to mitigate these risks.
Tackling Obesity and Risk Factors
The WHO first acknowledged obesity in 1948 and classified it as a chronic disease in 1997. While acknowledging the past, Dr. Krug stresses the urgent need to address this rapidly escalating public health issue. The WHO is dedicating significant energy to measuring obesity, implementing prevention strategies, and minimizing its impact on chronic diseases. South Asians are particularly vulnerable, developing chronic illnesses a decade earlier than other populations. While the public has a general awareness of NCDs, specific knowledge about risk factors and the importance of prevention—which includes increased physical activity, reduced smoking and alcohol intake, and healthier food choices—is often lacking. Furthermore, many are unaware of commercial practices that promote these risk factors, becoming unwitting victims of marketing strategies, especially those targeting young people with tobacco, unhealthy foods, and alcohol. As new markets open and the middle class gains more access to these products, it's vital to update and enforce food legislation to limit exposure to these risk factors.
Policy Interventions for Health
India has a unique opportunity to learn from the experiences of other societies and avoid similar public health pitfalls. The WHO aims to facilitate the exchange of best practices between cities globally. In India, interventions like displaying sugar content on food items in schools and implementing school nutrition policies are showing positive results. Globally, measures such as London's 2019 restrictions on junk food advertising in public transport, which disproportionately affected lower-income areas with rising NCD rates, are estimated to have prevented obesity. Cities like Rio and Cordoba have improved children's health indices by removing junk food and sugary drinks from schools. These early interventions gain local support when policymakers present evidence demonstrating their positive influence on consumption patterns and lifelong decision-making for children's health.
Promoting Physical Activity
Beyond dietary changes, facilitating physical activity is critically important for India. Road traffic crashes remain a significant issue, not only causing fatalities, particularly among young people, but also hindering physical activity due to the lack of safe, walkable spaces. As Indian cities continue to develop, prioritizing the creation of sidewalks, cycling paths, and robust public transportation systems is essential. These infrastructure improvements are far more feasible and cost-effective during the initial stages of urban growth than retrofitting them later when the detrimental health consequences, including deaths, become apparent. Dr. Krug has engaged in ongoing dialogues with Indian health ministry officials regarding tobacco and physical activity, and has met with the Union Minister of Transport multiple times to discuss safe pedestrian corridors, acknowledging this as a global challenge.
