Almost everyone has the same opinion about the causes of obesity (overweight). If not associated with excessive food intake, which must have been burning too few calories because of less activity.

Many experts now regard obesity epidemic is like a kind of lifestyle and eating habits are wrong. Two main causes were apparently not the only one who plays. An international journal of obesity has recently explained some things that can trigger the occurrence of obesity in addition to food issues.

Slightly different from the opinion of many people and even the medical community stating that lack of sleep can lead to increased lean body, which conducted research in the field of obesity experts say the opposite, and of course with explanations concerning the evidence could be accounted for.

From the study, found people who sleep less than seven hours a day are at risk get the BMI (Body Mass Index) greater than those who sleep with more hours. Preliminary data collected by the U.S. National Health and Nutrition Examination Survey was supported by the U.S. Nurses’ Health Study who entered a study of 68 thousand women aged 16 years and found that among respondents who had hours of sleep on average five hours to have more weight than the group that slept for 6 hours and lower in the group of seven hours a day.

This evidence in turn connect them with the theory that obesity also interfere with sleep where one effect is to reduce the quality of sleep, such as difficulty breathing or frequent waking. While the initial stages to explain it is one that serves the role of the hormone Leptin inhibits signal settings are hungry, wake up and decreases your appetite while ghrelin opposite rising on sleep-deprived state, it has a relationship with a lack of quality sleep after excessive metabolism. Leptin concentration was found decreased by around 18% whereas ghrelin increased 28%, a result often causes hunger.

This result was later supported by the National Sleep Foundation participated in the survey discovered that most of the U.S. population has decreased hours of sleep in recent years an effect on increasing cases of obesity in the country. All warm-blooded creatures including humans have a body temperature regulation based on metabolism and the environment through transpiration. This preservation system requires energy unless we are in a zone termonetral around 27 degrees Celsius.

Temperature changes that occurred in recent decades due to various causes in the natural environment was estimated to have played a role, where the climate settings, including the use of refrigeration and heating influence our weight. In the comfortable climate different for each individual energy expenditure for the settings a little more. Transpiration of energy to burn as hot weather and little known role in arrest of human appetite.