Not all of us are blessed with naturally fast metabolism. Add other uncontrollable factors like the fact that men tend to burn more calories than women, and that our metabolism slows down after we hit 40, and it can all seem like a cruel joke. The good news is there are ways to speed up the rate at which your body burns calories. The better news is that it can take less effort than you think.

Here are some new ideas to get your metabolism moving without trying too hard:

Stand up more at work

It?s time to start poking your head over that cubicle wall a little more. Studies have found that long periods of inactivity, such as sitting at a desk, can basically shut down an enzyme that controls your metabolism. To try and prevent this, try standing up every time you make a phone call, or walk over to a nearby co-worker to ask a question instead of emailing them.

Add some ice to your water bottle

Your body needs water to process calories, but did you know that drinking cold water can actually raise your metabolism so that you burn about 50 more calories a day? Researchers believe the increase comes from the work it takes your body to heat the water once in your system. If you drink at least six cups of cold water daily, that can equal up to five pounds lost in a year.

Fill up on more fiber

Fiber can increase your metabolism by as much as 30 percent. Recommendations vary, but aim for getting around 25 grams of fiber each day. PGX is a great source of soluble fiber that you can add to any snack or meal throughout the day. Beans, raspberries and artichokes also have high fiber content.

Now if you are willing to put in the extra effort, activities such as weight lifting and cardio workouts can also help boost your metabolism. The key is to keep increasing your intensity level so your body doesn?t get stuck in a workout rut.