New research shows that the weight of a person affects how and when their bodies burn energy.
A new experiment discovered that individuals with a healthy body weight tend to use more energy during the day when they are active, while individuals with obesity use more energy at night when they are sleeping.
The experiment also discovered that during the day, individuals with obesity have higher levels of the hormone insulin, which indicates that their bodies are working harder to use energy-packed sugar called glucose.
The scientists said it was surprising to see such a big difference in how bodies burn energy in individuals with obesity.
However, the researchers aren't sure if burning less energy during the day contributes to obesity or if it's a result of being obese.
The experiment also highlighted the importance of daily schedules, including sleep, eating, and exercise, in affecting our health.
The researchers focus on how our internal body clock, known as circadian rhythms, and sleep impact our bodies.
The research involved individuals of different body sizes, and future research will explore eating habits and hunger in people with both healthy body weight and obesity.