Eat less and exercise more – is it really enough to knock down the obesity pandemia?

Reduced physical activity and abundant energy intake are twomost common factors leading to uncontrolled body weight gain.But these factors are not under entire internal consciousnesscontrol; they are also partially genetically determined and areaffected by for example food marketing practices. In addition tothese two widely accepted factors, there are some other factors,whose could also contribute to the recent increase of obesityprevalence. For example, non-exercise activity thermogenesis,sleeping habits, more stable inside room temperatures (using ofheating and air conditioning), high prescription of medicationswith weight gain as side effect, psychosocial factors,unfavourable socioeconomic status and unpleasant urbanenvironment are the background factors which should not beomitted if obesity/BMI determination should be fully understoodand kept under control. In conclusion, unhealthy life style isnecessary, but not sufficient for obesity development.