Harvard Health Publishing suggests there is science behind the advice Virat Kohli gave PV Sindhu about "finding your joy again." According to the publication, neurotransmitters such as dopamine, serotonin, oxytocin and endorphins play a key role in promoting positive emotions. It recommends regular exercise, helping others, meditation, learning new skills, focusing on positive experiences, limiting negativity and pursuing meaningful goals to cultivate lasting joy, especially during difficult times.