Levels of insomnia can influence the hippocampus, the region of your brain that regulates food intake. If intake of sugary and fatty foods leads to abnormal activity of the hippocampus, it might be harder to avoid cravings for unhealthy foods. The researchers said another potential explanation for the connection between poor sleep and poor dietary habits, is that consuming too much food can cause gastrointestinal discomfort, which can make it harder to fall or remain asleep.

ME