How should people protect their hearts when they reach middle age?

Keep a good mood, do more things that can make you feel happy, and watch more TV dramas or novels and cartoons that can make you laugh. Because laughter is a little helpful to blood circulation, it can reduce the chance of heart disease. On the contrary, if you often fall into sadness or anger, it is easy to affect your health. Be less angry, don't worry, be in a good mood, protect your heart, be less excited and less sad, live a calm life, have a good heart, have a good mentality, get through it, get through the difficulties smoothly and have a healthy heart.