The chapter "The Science Behind Service" from Nayaswami Jyotish's book, "The Heart of Service," discusses the profound link between service and scientific findings. It references Paramhansa Yogananda's teachings on neuroplasticity, suggesting that altruism enhances brain function and leads to numerous health benefits. Various studies confirm that helping others increases happiness, reduces physical pain, and improves mental health. For example, a 2008 study indicated that spending money on others brings greater joy, while long-term studies show that volunteering correlates with better health outcomes. The brain's reward centers activate through altruistic acts, reinforcing the spiritual significance of selfless love. Additionally, a ripple effect occurs where kindness influences others, enhancing societal happiness. The chapter concludes with a call to action: serve others joyfully.