Newton’s “cause and effect” principle remains as true as ever. But what is the cause for a golf slice? The most common reason for a golf slice is the grip. It's logical, because the only part of your body that gets into physical contact with a golf clubs is your hands. Three main grips you can have on a club - overlapping grip, interlocking grip, finger grip. Choose the grip you like, but know that you shouldn't grip the club too tight, because this produces weak shots that slice. Instead, get a lighter grip as it enhances wrist hinge, a great source of power in your swing. Basically, on a scale from one to ten, the grip pressure should be about 4-5. In that way, your swing will have power and control. The right pressure, along with ideal placement of the hands on the handle, will result in longer and straighter shots.
Another useful tip for curing your golf slice is to increase the speed of your swing by pulling the club farther back before swinging. One of the laws of golf is that the ball goes where the clubface is looking when hitting it. If the clubhead curves to the right, or left, it will cause a slice. But, there are other factors that may cause a golf slice. Or it could be a combination of all of them. Improper hand or arm action can be the reason, or perhaps you are hitting too hard.
Basically, it's the lack of feeling that makes a given player slice. You have to feel the swing, feel where the clubface is pointing at and not hack or hammer the ball. It is that feeling which is the big difference between a PGA pro and an amateur. You can develop this feeling with by practicing a lot.