I think the movement of any kind is very beneficial for body and mind, so does not have to be running. Can be a faster walk or swimming... Fingers crossed that you find what suits you the best. One tip: you can start running (or any movement) at any age. Recently I saw this video about one English lady (entering 105th year) and she said, that she started yoga in her 90s. So we all have plenty of time for many new sports and activities! Onwards and upwards!