A new study finds that heart attacks that occur early in the morning may be more dangerous than those that happen later in the day.
The results show that people who have heart attacks between 6 a.m., and noon suffer about 20 percent more damage to their heart tissue, compared to those who have heart attacks later in the day.
Tissue damage includes a greater risk of death.
Researchers said the findings suggest that hospitals should be well-staffed in the early morning hours to take care of heart attack patients.
The study will be found in the journal, Heart.