Meditating for five minutes daily activates parasympathetic nervous system, which lowers heart rate, slows breathing, and relaxes the muscles, according to Sharat Arora, Himalayan Iyengar Yoga Centre's founder. It also helps in shrinking amygdala, the brain's fear and stress centre. It reduces cortisol (stress hormone) and increases serotonin and dopamine, uplifting mood and promoting well-being.