Sleep and body composition
There are several links between sleep and body composition.
Generally speaking, less sleep is associated with increased rates of overweight and obesity.
The correlation is not causal, because obviously sleeping doesn’t contribute greatly to energy expenditure. Someone who slept all day is going to be burning less energy than someone who runs all day.
Instead, a lack of sleep is a risk factor for overweight and obesity.
This makes sense. The less you sleep, the more tired and lethargic you are likely to be, decreasing the chance of physical activity (and intensity) and leading to poor food choices.
The best way to get consistent sleep is to go to bed and wake up at the same time every day.
That seems obvious, if extremely unlikely.
But the alternative is waking up the same time every day is very achievable.
Besides allowing you to develop a morning routine (or loose structure), this pretty quickly starts to bring your bedtime in alignment.
You might not go to bed at the exact same time every night, but if you’ve been up since 6am every day this week, staying up past midnight each night seems less appealing.
Try it for the next seven days.
Don’t let the weekend ruin your regime. You probably don’t need a sleep in.
In fact, when you get up at the same time on the weekend, you will probably feel more energetic than if you were getting up at 9am.