A new study shows that eating late in the day can disrupt weight regulation by increasing hunger, lowering calorie burn, and promoting fat storage. Late eaters had lower leptin levels, slower metabolism, and gene expression favoring fat gain. Eating earlier may reduce obesity risk more easily than dieting or intense exercise.

Exercise triggers the release of irisin, a natural hormone that may help convert white fat to calorie-burning brown fat, improving metabolism and lowering diabetes risk. Brown fat burns energy, while white fat stores it. Cold exposure, genetic factors, and irisin may promote this fat transformation. Increasing brown fat could be a breakthrough for weight loss and metabolic health.