Radical 忄
6 strokes
heart 忄 (339a) + perish 亡 (568b) = busy 忙
Notice that the same two parts (“heart” and “perish”) are used to make up this character and the next one. So the order in which they appear in the two equations (and stories) is important for remembering which is which.

Your heart will perish if you rush around being busy all the time. / The fairy can (magically) see that your arteries are all getting mangled up in there …

Note that this is just one stroke.