Not having anyone you can reach out to for support is more than heartbreaking — it’s a public health crisis, says social scientist Kasley Killam. In her TED Talk, she explains that while caring for your physical and mental health is essential, your social health is just as crucial — and neglecting your relationships can take a serious toll on your well-being and happiness. She offers a guideline to help sustain the connections in your life — and foster a sense of community and belonging for everyone. “The beauty of nurturing your own social health is that it naturally enriches the social health of everyone you connect with,” she says.