How to stop teeth grinding at night ?

And what are the reasons for grinding teeth in sleep?
How to prevent naturally without using mouth guard?

Aside from using a mouth guard, what else can I do to treat bruxism (teeth grinding.)?

Decrease the stress in your life.

Quit using nicotine (cravings during the night resulting in bruxing).

Teeth clenching & grinding – is it a major problem and can I do anything to stop it?

I was put on Sertraline a few months ago for depression/anxiety. One of the side effects has been that it's been making me clench and grind my teeth. When I'm lying in bed at night I can feel my teeth clenched and I think when I'm asleep they're still like that cos I usually wake up that way. Once or twice I've woke up in the middle of the night with my teeth grinding really bad. I do it a lot during the day as well, especially when I feel stressed. It's pretty much involuntary. I usually don't realise I'm doing it at first but once I do I find it difficult to stop.

grinding and clenching teeth at night?

I have a mouth guard but I clench so hard that it still puts pressure on my teeth and i still wake up with a major headache in the middle of the night. What can I do?