Exercise is always helpful in any athletic activity, but I think many golfers would benefit from stretching the most. Lack of muscle mobility can cause a lot of flaws in the set up and not allow people to get in certain positions during the swing. As golf instructors, we often have to work with students with limitations, but many people could get better just by being able to make certain movements. Specifically, I like the “cat and cow” yoga stretch for the lower back (helps with posture) and rotator cuff stretches, with weights if possible, to help with abduction of shoulder and a bigger turn. Hope this helps!