To promote general health & wellbeing, aim for 7-9 hours of good sleep each night. Other Aspects of Lifestyle to Think About. Excessive alcohol consumption and smoking are two other lifestyle frummy east apkactors that can lead to belly fat. There is a correlation between increased abdominal fat accumulation and a higher risk of metabolic syndrome in smokers and heavy drinkers. You can successfully reduce belly fat and get a flatter stomach by adopting healthy lifestyle choices like giving up smoking, drinking less alcohol, controlling your stress levels, and giving your sleep priority.