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Urban green spaces, including parks, street trees, and community gardens, are increasingly viewed as essential infrastructure rather than optional amenities. Research in public health and urban planning suggests that access to greenery is associated with lower stress levels and improved mental well-being, partly because natural environments encourage relaxation and reduce exposure to noise and heat. Green areas also support physical health by providing safe, attractive places for walking, cycling, and informal exercise, which can reduce the risk of chronic diseases linked to inactivity. Beyond individual benefits, vegetation can improve air quality by filtering particulate matter and can lessen urban heat through shade and evapotranspiration, helping cities adapt to rising temperatures. However, these advantages are not distributed evenly: low-income neighborhoods often have fewer well-maintained parks and less tree cover. As a result, many experts argue that urban greening policies should prioritize equitable investment, long-term maintenance, and community involvement to ensure that environmental and health benefits reach the populations that need them most.