Researchers at the Johns Hopkins and Wake Forest Universities have found that golfers, especially those who are not in good shape, have a higher risk of suffering from heart strain.
The study measured the exercise capability of 40 golfers through a nine-hole game.
It found that players with heart disease worked at 57 percent of their exercise capacity. Some golfers came out at over 100 percent.
Researchers now say heart patients may want to check with their doctors before hitting the green.
They say it doesn't necessarily mean they have to stop, but that patients may want to take a golf cart or shorten play to stay safe.