As the summer sunlight plays peek-a-boo among the misty receding clouds, the flickering bright rays light up the pavement at Siri Road, Malabar Hill in Mumbai and greet joggers. As the bells clang at the Hanuman temple, which is situated on the top of the mound, Ajai Jhala, CEO, BBDO India arrives for his morning dose of dopamine. Running, according to him is a legal dopamine, and he claims to be addicted to it.