Rest is important after a heart attack, but it's just as important for you to participate in recreation and social events and to begin making physical activity a part of your daily life. In many cases, doctors will recommend that survivors get more physical activity than they got before their heart attack. A good night's rest is especially important for heart attack patients. And if you feel tired during the day, take a nap or a short rest. Heart patients should rest before they get too tired. Your doctor will tell you what's best for your specific situation, but most heart attack patients find they have plenty of energy for both work and leisure activities.