Dmytro Mysak, a first-year medical student at Rush University pictured on March 17, 2022, was born in Ukraine and still has family living in Lviv. (Evan Garcia / WTTW News)

Rush University medical student Dmytro Mysak left Ukraine with his parents when he was 3 years old, but still has family living there. Now, he is organizing a relief effort for refugees of the war. 

We talk with a cardiologist who believes a vegan diet is good for your heart.