Hitting the golf course at least once a month could lower the risk of death among older adults, according to a new preliminary study.

Researchers found during the decade-long study that golfers had a death rate of 15.1% compared to 24.6% among non-golfers. About 25 million Americans play golf.

Our study is perhaps the first of its kind to evaluate the long-term health benefits of golf, particularly one of the most popular sports among older people in many countries,” the study’s lead author, Dr. Adnan Qureshi, said in a news release. Qureshi is executive director of the Zeenat Qureshi Stroke Institute and professor of neurology at the University of Missouri in Columbia.