A critical global concern in the modern era is mental health and well-being, where rapid socioeconomic change, technological advancements, and lifestyle shifts have significantly impacted individuals' psychological health. Primary stressors today include urbanization, digital dependency, social isolation, and economic pressures, alongside the escalating prevalence of mental health disorders such as depression, anxiety, and burnout. The COVID-19 pandemic has further exacerbated global mental health crises, increasing the vulnerability of populations during times of uncertainty and instability. This paper critically examines emerging connections between mental health and lifestyle factors such as sleep, diet, and exercise. Interventions are discussed from a multidimensional perspective, encompassing pharmacological treatments, psychotherapy, digital mental health tools, and community-based programs. Special attention is given to the rise of telemedicine and mobile mental health apps, offering innovative solutions to bridge gaps in mental healthcare accessibility. Furthermore, the review underscores the importance of preventive approaches, promoting mental health literacy, reducing stigma, and fostering resilience through mindfulness, cognitive behavioral techniques, and social support systems.