A lot of factors go into weight loss. Of course, calorie counting is important, and exercise, too, if you can. Nevertheless, there are some weird things out there that can totally sabotage your diet. Things you may never have thought of like sleep, stress, diet drinks, and even air conditioning.

Lack of sleep has been shown to be a factor in weight loss. If you don’t get enough sleep, your metabolism won’t function properly, making weight loss more difficult. Are you a late-night TV junkie? A study found that those who stay up late consume on average 248 more calories each day.

Think you are cutting calories by drinking a diet soda? Wrong. According to a study done by Sharon Fowler at the University of Texas Health Science Center, San Antonio, a person’s risk of obesity went up 54.5 percent for each 1-2 cans of diet soda consumed each day, compared to 32.8 percent for those who drank regular soda.

Medifast takes the confusion out of weight loss, and you can save money on the plan with MediFast coupons. The meals and drinks are specifically tailored to help you achieve your weight loss goal.