First, don't get up too early. Because the senior are easy suffer from the myocardial infarction, ischemia, arrhythmia and other diseases. And the morning is the peak period, if the senior do the sports during the period, it easily incurs such disease to happen, and even lead to a sudden death.Second, don't do the sports when you're hungry.
It is not good for the old people to take vigorous exercise on... 