Sunny Side Up Episode 15Celebrated TV presenter, actor and author Anu Hasan on her life experiences and how to maintain a positive outlook.Gratitude strengthens the immune system, lowers blood pressure and reduces symptoms of illness. Anu Hasan compares a person's attitude to a muscle. The more you exercise your 'positivity muscle' with gratitude and positive thoughts, the stronger your ability to remain grateful and positive, even during difficult times.