1. Sleep Deprivation:
In 2012, one research show that people sleep less, then doing less exercise the next day. That’s means burn less heating. Actually, your body burns calories when you sleep. So sleep well is very important.
2. Iron deficiencies:
Iron helps to carry the oxygen to the muscle. If your body low in iron content, your muscle can not get the enough oxygen, the energy will drop down, then your metabolism become slower. Anyway, you should eat some foods which contain iron, such as beans, green vegetables.
3. Eating less
When losing weight, you must reduce calories intake. Now your body will be in hunger mode, slow down the speed of metabolism. The correct way is that you should know how many calories you really need per day.
4. Sitting too long
Sitting for about 20 minutes in any regular place will restrain your metabolism.
5. Time difference
The body’s bioclock control part of your cell directly, these cells can keep your metabolism going.
But if you broke up the circadian rhythm, your cells aren’t working any more, effects your metabolism system.
6. Calcium deficiency
The reason your drink milk, is that calcium is the key point to adjust metabolism. That decides you consume the calories, or stock fat. One research show that high calcium foods can help to burn calories.
7. Agricultural products
A Canadian research show that, organochlorine pesticide may disturb the calories burning procedure, and hard to lose weight.
8. Dehydration
The cells physiological process in your body, include metabolism, all by water.

9. Breakfast
Never miss your breakfast, or you will eat more at lunch. Actually, one breakfast you missed, then more fat you gets.
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