What if being kind could literally change your biology? On The Health Review podcast, I recently sat down with best-selling author Dr David Hamilton - who's one of the world's leading experts on the science of kindness and how it impacts mental health, physical health, our lives, and the workplace. Kindness doesn’t just make us feel good — it changes our brain chemistry, lowers blood pressure, and boosts immune function. It’s one of the most overlooked “biohacks” for health and happiness. In thi