Post
by Xian » Thu May 31, 2007 4:34 pm
On the subject of the relationship between body weight and sleep quality, I think it is generally agreed upon that lack of sleep is associated with weight gain, via a number of mechanisms:
- Chemical imbalance: the hormones or neurotransmitters that are responsible for telling your brain "you are full" after a decent amount of food is grossly lacking in people with sleep deficiency. So they tend to eat larger portions to fill 'full"
- It takes more energy for the sleep deprived body to stay awake, and the craving goes to food with rapid energetic "value" (simple sugars, sweets, snacky foods in general... full sugar soft drinks?). It's about survival!
- Of course, it is much harder to find the energy to exercise
- Lack of sleep and not being able to "function", the fear of loosing job, relationships etc. cause anxiety and depression, which in turns send those hormones/neurotransmitters out of whack and, often result in over-eating (few react with loss of appetite, which is not any better anyway)
and I may be forgetting a few... along with a number of other factors responsible for weight gains, not associated with lack of sleep (metabolic rate, hormonal deficiencies etc…)
Of course, the question is still out there: which came first, the weight or OSA? Perhaps, just perhaps, mild overweight leads to OSA in pre-disposed people (with the right/wrong throat/jaw configuration) and it snow-balls from there??? And of course, the fact that some people who are not overweight but have OSA tells me that OSA can come first… (why they do not become overweight should probably be studied!)
I believe "liking to eat" is never a good reason to be overweight, obese or morbidly obese. Something else has to be the cause for the body to self destruct....Same goes to any other self destructive behaviors (I like a drink once in a while, but I am not an alcoholic, I know when to stop; I like sex once in a while, but I am not going to put myself in danger for it and I am not a sex-addict etc, etc...). No-one argues that you do get fat by over eating for your size and level of activity. The reason why is far more complex, and I am convince lack of quality sleep has a lot to do with it for a lot of people… My humble opinion!