New York State is banning the sale of the herbal supplement kratom to anyone under 21 and will require warning labels on products, citing addiction and safety concerns. Meanwhile, mental health experts say the holidays can be especially hard for many New Yorkers coping with grief, stress, or disrupted routines. Plus, WNYC’s Hannah Frishberg looks at a growing list of newer holiday performances that are becoming seasonal traditions across the city. Finally, we wrap up with what’s in season at Greenmarkets right now: sweet potatoes, a versatile staple for holiday meals.