Tag sleep deficit

Lose Sleep, Lose Muscle

drstaceynaito Leave a comment

Originally published in March 2014 on RxMuscle.com:
http://www.rxmuscle.com/blogs/the-news-the-newest-in-mp/10329-sleep-deficit-and-muscle-loss.html?hitcount=0

sleep%20equals%20muscle

Those of you who insist on burning the midnight oil and carving into time during which you should be sleeping are doing yourselves a disservice. When you build up a sleep deficit, not only do you adversely affect your attention and overall energy, you also diminish the potential muscle gains you would obtain if you consistently got a good night’s rest.

A good portion of the slump in muscle repair and growth which occurs from inadequate sleep is due to inadequate secretion of growth hormone (GH). GH is only secreted during deep sleep, so people who don’t sleep for more than a few hours will spend less time in deep sleep and cause GH secretion to drop. In addition, there is some evidence that testosterone secretion also drops, creating a double whammy which cripples the body’s ability to utilize fat and build muscle.

Cravings can also become a significant issue with sleep deficits as a result of hormonal effects. Leptin, a hormone which signals that you are full from a meal, is inhibited during sleep deprivation, resulting in increased food cravings (especially for carbohydrates). Conversely, ghrelin, a hormone which signals hunger, increases by as much as 30 percent after only a two night sleep deficit.

The body also produces more cortisol during the late afternoon, which is exactly when the body’s production should be tapering down to prepare the body for sleep. Higher cortisol levels promote deposition of more fat and utilization of muscle for energy during a sleep-deprived state.

When you cheat yourself out of a full night’s sleep, you also deplete neurotransmitters in the brain which are in charge of regulating mood. The result is irritability and, over the long term, depression, both of which can impact the intensity of your workouts and hinder your efforts to pack on muscle.

Sleep deficits also result in a decrease in alertness and concentration which often translates into submaximal workouts. And Sleep deficit affects strength. A study in Ergonomics examined the effects of sleep deprivation on weightlifting, with compelling results. As expected, there was a significant decrease in maximal lift for bench press, leg press, and dead lift after a three-day sleep deficit was established.

If you are in the habit of cutting into your sleep time, or you practice erratic sleeping patterns which are creating a sleep deficit, try to get into a rhythm in which you get enough sleep every night, especially if you are hitting a plateau with your training. Once you start getting adequate sleep, you will notice a big difference in your strength and muscle gains.

Those Days When Your Engine Stalls

drstaceynaito Leave a comment

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No, I’m not talking about your car. I am referring to your get-up-and-go, your energy, your motivation to do anything on a given day. We all have those days when we lack the pep to charge through the day, when the bed seems unusually cozy and warm, and when our ability to rationalize our way out of everything on our to-do list for the day is particularly strong.

On the more serious end of the spectrum, a lack of initiative can be indicative of depression, especially when it is recurrent. In other instances, fatigue could be a sign of stress, sleep deficit, over-training, dehydration, malnutrition, or hormonal imbalance. Some people will even notice a change in energy from weather fluctuations.

For the past three months, I have slept so deeply that I will remain in slumber, despite my alarm’s alerts, with no recollection of the device ever triggering. My dreams have been intense, complex, apocalyptic at times, and truly bizarre, causing me to wonder why my subconscious has meandered so much while I was in dreamland. The many months I spent battling night sweats and insomnia suddenly shifted to feeling (appropriately) very cold at night and sleeping like a rock, both of which I have welcomed. The only real problem now is convincing myself to get out of bed in the morning!

When I eventually begin to wake up, it is an agonizingly slow process in which I can barely move or open my eyes. The sudden dry eye condition I have been experiencing recently hasn’t exactly motivated me to open my eyes up quickly either. The bed is so cozy and so warm, especially because my cats have gotten into the habit of using me as a convenient heater during the night. They also pin me into a small space in the bed so that I have to shimmy my body out of the tunnel they create around me. It seems to be such a waste that I have a Cal King bed, because I never get to spread out on it!

When I absolutely MUST get out of bed at a specific time, I will change the alarm alert, and set more than one alarm, usually with one alarm in my bathroom. In order to shut off the alarm in the bathroom, I must get out of bed, but I have gotten so good at walking to the bathroom with my eyes barely open that I can shut off the alarm, crawl back in bed, and go right back to sleep.

These are the reasons which I have been using to remain in bed:

– The bed is nice and warm and the ambient temperature is cold (upper 60’s)
– The cats are warm too
– The cats are very affectionate and cuddly in the morning
– My bonding time with the cats can be considered a meditative exercise
– My bed is high off the ground and it is hazardous for me to jump down from it (it truly is high off the ground)
– My dry eye condition is a sign that I need to keep my eyes shut
– I need to make up for lost time when I had night sweats and insomnia (it was quite a sleep deficit!)
– I am most efficient at my morning social media posts when in a supine position in bed
– I want to make sure that I spend one third of my life in bed
– If I get out of bed, then I probably have to deal with people

At any rate, I have every intention of relishing the feeling of being in an insanely comfortable and warm bed. I’m sleeping in!

Sleep Deficit And Muscle Loss

drstaceynaito Leave a comment

Originally published on mensphysique.com on Wednesday, 05 March 2014

http://www.rxmuscle.com/blogs/the-news-the-newest-in-mp/10329-sleep-deficit-and-muscle-loss.html
sleep equals muscle
Those of you who insist on burning the midnight oil and carving into time during which you should be sleeping are doing yourselves a disservice. When you build up a sleep deficit, not only do you adversely affect your attention and overall energy, you also diminish the potential muscle gains you would obtain if you consistently got a good night’s rest.

A good portion of the slump in muscle repair and growth which occurs from inadequate sleep is due to inadequate secretion of growth hormone (GH). GH is only secreted during deep sleep, so people who don’t sleep for more than a few hours will spend less time in deep sleep and cause GH secretion to drop. In addition, there is some evidence that testosterone secretion also drops, creating a double whammy which cripples the body’s ability to utilize fat and build muscle.

Cravings can also become a significant issue with sleep deficits as a result of hormonal effects. Leptin, a hormone which signals that you are full from a meal, is inhibited during sleep deprivation, resulting in increased food cravings (especially for carbohydrates). Conversely, ghrelin, a hormone which signals hunger, increases by as much as 30 percent after only a two night sleep deficit.

The body also produces more cortisol during the late afternoon, which is exactly when the body’s production should be tapering down to prepare the body for sleep. Higher cortisol levels promote deposition of more fat and utilization of muscle for energy during a sleep-deprived state.

When you cheat yourself out of a full night’s sleep, you also deplete neurotransmitters in the brain which are in charge of regulating mood. The result is irritability and, over the long term, depression, both of which can impact the intensity of your workouts and hinder your efforts to pack on muscle.

Sleep deficits also result in a decrease in alertness and concentration which often translates into submaximal workouts. And Sleep deficit affects strength. A study in Ergonomics examined the effects of sleep deprivation on weightlifting, with compelling results. As expected, there was a significant decrease in maximal lift for bench press, leg press, and dead lift after a three-day sleep deficit was established.

If you are in the habit of cutting into your sleep time, or you practice erratic sleeping patterns which are creating a sleep deficit, try to get into a rhythm in which you get enough sleep every night, especially if you are hitting a plateau with your training. Once you start getting adequate sleep, you will notice a big difference in your strength and muscle gains.