Sumary of Potential indicator for obesity risk detected during sleep:
- Throughout the day, we gain energy by breaking down carbohydrates, fats, and proteins in our bodies through the process of metabolism.
- For example, immediately after eating, most of our energy comes from carbohydrates, while after fasting, most comes from fats.
- The body’s ability to switch metabolic energy sources in response to changes in nutritional state, such as after meals and during sleep, is called metabolic flexibility.
- “We were interested in how metabolism changes during sleep and whether we could detect any metabolic differences in people with inflexible metabolisms,” Professor Tokuyama explains.
- When the amounts are equal — an RQ equal to 1 — it signals that the energy source is carbohydrates.
- When the ratio is lower, around 0.8, it indicates that fats or proteins are being used as the energy source.
- To characterize metabolic changes over time, the researchers measured the carbon dioxide/oxygen ratios from 127 people, every 5 minutes over a 24-hour period.