Monthly Archives: August 2012

Metabolism – What it is & How you can make it work for you Part 10

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Welcome back for the final part of this series on your metabolism …

How do I know if my metabolism has increased?

We all know why we want a reconditioned and faster metabolism – but how do you know if your metabolism is increasing?

But how do you know if your metabolism has been raised?

A raised metabolic rate will cause some physiological changes which indicate that your metabolism has been increased:

  • Greater energy levels:A reconditioned and faster metabolism means that your body is able to more quickly release calories as fuel. This means that your energy systems are running more efficiently and you just have more ‘Get up & Go’ and are able do more. You’ll even find yourself looking forward to working out as it remains challenging but you have the reserves to do more and get more out of it.

    A better metabolism = More Energy!!!

  • Temperature sensitivity alters: For most of us an increase in metabolism means that we produce more heat from our bodies and as a consequence feel the cold less. If you are one of those folk who rarely feel cold you may find that you are feeling hotter more often. You will also find that you break out into a sweat easier when you exercise as your body more quickly heats up and that you tend to sweat more as your body sheds heat. This is a good thing – it means you are burning calories!!
  • Hormone Levels alter: You can get tested to find out for sure but the research shows that as your metabolism reconditions & speeds up you will experience a change in your hormone profile. Your energy highs & lows will smooth out meaning Insulin is under more control, you’ll feel les hungry meaning Leptin & Ghrelin are playing their roles better and you’ll be adding lean muscle, recovering faster, getting stronger and experiencing a higher libido – all of which means your testosterone levels have increased and likely your cortisol levels have dropped.
  • Lower Resting Heart rate: This sounds counter to everything we’ve looked at about RMR – but a low resting heart rate is a sign of fitness, and disease aside the fitter & leaner you are the lower your heart rate. Now ‘low’ is an individual thing. My resting heart rate is 56 – not bad for a 50+ year old with a history of smoking, obesity and little exercise for way too many years!! Generally a resting rate of over 80 is unfit, and lower than 60 is good. However judge it after your 30 days based on where you started – if it was 90 and you’ve done your Lose 20 in 30 Program and it is now 79 that is a significant improvement.

Your heart will have a better recovery rate so you can be fitter...

(NB: anytime the body needs to speed up recovery, your heart rate is usually speeded up for some time. So your resting heart rate can be higher on occasion when you have had a particularly challenging session the day before. This is because your body will be in rebuild / recovery mode and increases in heart rate are a part of this as your body removes wastes created by tissue breakdown and also strives to deliver nutrients & other tissue building compounds.)

  • Exercises get easier: Another sign of an increased metabolism is how much more you can lift / run / do before feeling fatigued. This is increased fitness and increased levels of fitness mean a reconditioned metabolism.
  • You eat a huge meal and feel full for less time: Whilst you should NOT  be eating to bursting at any meal, occasionally we all do and you will find with your new reconditioned, faster metabolism that your body deals with the excess food more quickly and reduces the tendency to bloat. The reason is the body is digesting the food quickly by activating more digestive enzymes so it can rapidly break down the essential nutrients to speed up muscular recovery. Of course if you are eating as the Lose 20 in 30 Program suggests then this will not be an issue for you.

The more of the above signs you experience, the more likely it is that you have reconditioned and increased your metabolism.  Of course the other real sign is that your clothes are fitting better and you are seeing changes to your body shape & appearance in the mirror. The best sign of an increased metabolism is less bodyfat.

The real sign - you need to buy smaller clothes!!

Take Away: Signs of increased Metabolism will vary from person to person, but the changes in your appearance and the way your clothes fit are the most visible ones.

Conclusion:

Well there you have it – a good grounding in what metabolism is what affects it and how you can manipulate it to reach your goal of becoming leaner and healthier.

Metabolism – What it is & How you can make it work for you Part 9

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How to Keep Your Metabolism Fired-Up as You Age (How to slow the slowing…):

Welcome back to the next to last on this series aboiut your metabolism.

Your Resting Metabolic Rate or RMR is where the majority of our calorie / kilojoule use takes place. The higher this is, the less fat we carry. You see, as we’ve discussed before decreases in your RMR are heavily associated with the reduction of lean muscle tissue.

Age-related weight gain is purely a function of the loss of muscle.

Aesthetically pleasing or not - his metabolism will be faster with this amount of muscle...Muscle is a hungry tissue and requires a lot of calories to maintain. The more functional muscle mass you have the faster your metabolism and the lower your fat stores. Muscle tissue atrophies –diminishes – as we age because in general we move less, exercise less and become generally physically less active.

While it’s not entirely clear whether this muscle loss is just a result of the ageing process or because most people become less and less active as they get older, what is clear that you do not have to accept it as inevitable.

It is hard to argue with your mitochondria, but nonetheless you can offset many of the factors which cause the slowing of your metabolism. The quickest way to disrupt your current metabolic set point and loosen your current homeostatic state is through metabolically costly exercise. Challenging regular exercise actually increases the number of mitochondria and as we’ve seen already, the more of these little ‘furnaces’ you have, the more calories you burn. (See the soon to be released Lose 20 in 30 Work Out Manual)

Research has shown that regular, metabolically taxing strength and resistance training can reduce, reverse or even prevent this muscle loss. This in turn leads to less fat. So the first way we can work to negate the

The best insurance against age-related fat gain is lifting weights…

metabolic slowing effects of aging is by maintaining our muscle mass through regular challenging conscious exercise.

Move more and lift weights dammit!

However the type, duration and choice of exercises are vitally important. A specific exercise protocol called Metabolic Conditioning (referred to as Metabolic Chains in the  promised Lose 20 in 30 program) has to be used. The up coming Lose 20 in 30 Exercise Manual has all of the details on this.

But exercise is only one of a number of the lifestyle modifications that you can adopt to keep your metabolic rate fired-up – regardless of your age.

What can I do to increase or maintain my metabolic rate as I age?

You can (Warning – recap of some previous information ahead!!):

  • Ensure that you engage in at least 20 to 25 minutes of medium to high metabolic cost exercise every second day
  • Ensure that you engage in 20 – 35 minutes of moderate physical activity on the alternate days.
  • Begin eating more small meals throughout the days instead of just 1 or 2 larger meals.
  • Look for other small ways to move more and stay more active. Take a parking spot away from the main entrance of the mall. Likewise do the now clichéd but still effective, take the steps instead of the elevator. Give the dog an extra walk each day or just go for a walk each evening after dinner etc etc.
  • Stop drinking soda & fruit juices and drink more cold water and green tea instead.
  • Avoid foods that contain high levels of saturated fats and any level of transfats wherever possible.

  • Sleep – enough & your metabolism thrives, too littel & you get fat – simple really…

    Avoid highly processed foods wherever possible especially the ‘whites’ – sugar, flour, rice and other processed carbs.

  • Don’t eat anything labelled ‘diet’
  • Try to eat more un – or low processed foods like fruit & veges, fish, eggs and protein.
  • Eat more protein & fibre.
  • Add spices to your meals.
  • Take fish oil
  • Take Vitamn D ( the D3 version NOT the D2)
  • Eat like the Lose 20 in 30 Fuel manual suggests – slow, low GI carbs, good fats, lean proteins and as little processed carbs as possible.
  • Try out stress reducing activities like Yoga, Pilates, Tai Chi or start meditating daily. A walk on the beach, in the Park, in a Forest or a Field – are all great stress busters.
  • Take 500mg of Vitamin C when stressed this will reduce cortisol significantly.
  • Make love more often.

Your metabolic rate has always been, and will always be, a result of a combination of your activity levels, caloric intake, and the types of foods that you consume. Low or unprocessed foods are simply better for your metabolism and make it easier for your body to maintain a faster metabolism.

It’s very important for all of us, regardless of our ages, to eat better proper foods, more often and to maintain regular levels of physical activity. To a very large degree your metabolic rate is yours to control.

Remember your age or even your sex does not matter, in order to lose fat fast, efficiently and to transform your metabolism three things have to fall into place – you must have an absolute burning desire to change the way you look & feel, you must have a strategic training protocol to follow which disrupts your current

A strong old age – something to aspire to …and within reach for us all.

homeostatic set point and ramps up & re-conditions your metabolism and lastly you must follow a diet that supports the reconditioning of your metabolism by creating a calorie deficit whilst firing up your metabolism and manipulating your hormones.

In the end, age will slow us down. But by staying active and eating well, the experts agree: You can slow the effects of a slowing metabolism.To a very large extent your metabolic rate is yours to control.

Take Away: You’ve heard it before – you don’t have to accept the metabolic slow down of aging – you can offset it!!

Metabolism – What it is & How you can make it work for you Part 8

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Welcome back!

So what causes downwards trends in your Metabolic Rate:

Children’s per body weight kilo metabolic rate is about 200% that of adults. Because they have a much higher proportion of their body composition made up metabolically active tissue (heart, lungs, kidneys, brain etc) in comparison to adults, are undergoing the demands of growth and simply having a more active lifestyle kids have a much higher metabolism than grownups.

It’s not just their activity level that makes children’s metabolism run so much higher than an adults…

However as growth finalises getting and we get older the proportion of metabolic active organs to our body composition drops. This alone means that our RMR decreases. Your RMR drops round about 25% between the ages of 6 and 18 as your adult proportions are reached and growth slows and eventually halts.

After age 18 your RMR decreases at least 2-3% for each decade that follows. (Many researchers put this figure even higher if you live the typical Western lifestyle.) By the time you have hit 40 your RMR is usually more than 40% less than it was as a child.

So this drop in RMR is coupled with an increasing loss of fat-free lean body mass as we take on adult, ‘real life’ responsibilities and  move less, exercise less, eat metabolism slowing foods and eat more than our slowing RMR demands. Usually we eat more ‘on the go’, less regularly and the wrong foods with a lower TEF – so this compounds the RMR dropping effect.

So as we age we experience a lower RMR, lower TEF, and less TEA – these all combine to create a less lean, fatter, less metabolically active environment for our bodies. Even worse because these changes are gradual our bodies accept them and then strive to maintain them via a state of homeostasis.

Face it – by the time we are in our 40’s, if not before, most of us are well on the way to a future of not moving well, having larger fat stores than is good for our health and in fact be starting to experience firsthand some of the myriad health issues that our Western lifestyle is rife with.

So does Metabolism slow down or do we?

The answer is both.

Unfortunately the exception – not the rule!! (but most of us could if we wanted it badly enough…)

As we age we certainly move slower as the ability to contract our muscles lessens and undertake less physical activity.

The slowing of your metabolism is real. Our cells have miniature ‘furnaces’ in them called mitochondria. These mitochondria burn the fuel supplied to them and as we get older they become less & less efficient at burning fuel and recent research suggests that their numbers also decline as we age. This leads to a slower metabolic rate not just at rest but also for all activity.

Next we have a delightful process called sarcopenia, which is a fancy name for muscle wasting. Once past the age of 50 our ability to retain muscle tissue in the face of poor nutrition and lack of exercise diminishes rapidly. Again since muscle burns more energy than fat, this means the metabolism slows down. This means it is harder to burn off a cupcake when you are in your twenties than it is in your sixties!!

Lastly being overweight slows metabolism because overweight people burn fat even less efficiently. Add these together as the years go by, and it is little wonder that we get fatter, less lean and that the inches start to get more & more numerous around your waist.

Take Away: Your Metabolism slows as you age – especially if you follow the typical Western lifestyle & diet.

Part 9 next week!! Don’t forget to browse the blog backlog – lots of good info hiding there!!

Metabolism – What it is, How You Can Make It Work For You Part 7

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Welcome Back !

As different as we all are there is one area that affects us all the same way – Sleep or rather the lack of it. Two of the things that have the greatest blunting effect on your metabolism are stress & a lack of sleep.

Stress and Lack of Sleep can affect your Metabolism

As mentioned earlier your BMR & RMR both decrease as you get older. This means that it is harder for your body to burn calories and harder for you to lose fat. A daily routine of conscious, challenging exercise not only improves your health and fitness, but it increases your RMR.

Stress has both positive and negative impacts on our metabolism.

In reaction to any stress our body initially increases our metabolism, but when the stress becomes prolonged or chronic then the opposite occurs and our metabolism slows down.

The famous ‘Fight of Flight’ response is our body’s reaction to stress. But this heightened physical state can only be sustained for short periods before the body exhausts its stores of the main hormones it responds with.

During periods of stress, your hypothalamus (sort of the hormone control centre – see the Lose 20 in 30 Hormone Primer) instructs the adrenal glands to release three chemicals – epinephrine (adrenaline), norepinephrine and cortisol – into your bloodstream. Initially these three chemicals act to speed up your heart rate, your respiration, your blood pressure, and your overall metabolism.

Epinephrine breaks down glycogen into glucose in the liver, and both it and norepinephrine

increase the amount of circulating free fatty acids for use as a readily available fuel source. However once these have hormones have done their job and we have not used the fuel available then the cortisol kicks in and acts in its role as the belly fat storing hormone. The more prolonged the stress the higher your cortisol levels & the more belly fat you store.

Cortisol serves many important functions, including the rapid release of glycogen stores for immediate energy. But persistent cortisol release requires that other vital systems effectively shut down – immunity, digestion, healthy endocrine function, and so on. Among other stress-health associations, the link between elevated cortisol and weight gain has already been clearly established.

Chronic stress, largely through your hormone system, can disrupt your digestive system resulting in a lower uptake of nutrients and to the stomach producing higher than normal amounts of digestive acids on a prolonged basis. This can lead to IBS – Irritable Bowel Syndrome which definitely lowers nutrient uptake. Stress can often cause our abdomen to become bloated, creating cramping, constipation or even diarrhoea. Even worse studies suggest that stress may make a person more susceptible to the bacteria that cause peptic ulcers.

All of these conditions lead to a lowering of your RMR.

The good news is that if the stress is removed, the body quickly improves and your RMR is raised.

How to de-stress? – Get your sleep!!

Inadequate sleep interferes with nearly every aspect of your fitness & fat loss program. The negative effects of lack of sleep cannot be overstated.

Tired people burn fewer calories because they lack the energy to exercise or work out intensely. Some studies show that even if sleep deprived folk exercise for the same length of time as rested individuals they burn far fewer calories / kilojoules.

Lack of sleep not only makes you too tired to exercise, but it negatively affects your hormone system by altering the hormone levels in your body. Miss enough sleep and you’re effectively disrupting your biological processes, especially those that control & regulate your metabolism.

Lack of sleep affects the levels of cortisol, leptin and ghrelin, three hormones linked with muscle catabolism, belly fat storage, appetite and eating behaviours. Researchers at Stanford University found that when you are sleep deprived, your body decreases production of leptin, (the ‘I’m full & don’t need to eat any more’ hormone) at the same time it increases levels of ghrelin, the hormone that triggers feelings of hunger, and our old friend cortisol – which exists to store fat around your belly and increase the catabolism (tearing down) of your muscle tissue.

The researchers found that nearly three-quarters of the people they studied slept less than

8 hours per night, and that the increase in obesity was directly proportional to the decrease in sleep.  This goes a long way towards explaining why very sleep-deprived people are nearly twice as likely to be obese.

Lack of sleep also causes levels of growth hormone to decline. Growth Hormone naturally blunts & counteracts the effects of cortisol so lowering it raises the effects of cortisol. This reduces your muscle mass, your strength, decreases your recovery ability, increases your fat tissue stores, and weakens your immune system.

Too little sleep also raises your Insulin levels increase. This, as we now know, increased insulin makes fat control difficult due to its effect on storing blood sugar as fat. Sleep deprivation also leads to low energy levels which often bring about the dreaded candy / cookie / chip cravings which turn into binges which in turn lead to more insulin release and fat storage – especially if your glycogen stores in your liver & muscles are full. There is even some research which suggests that lack of sleep reduces your body’s ability to store as much glycogen as when it is fully rested. This means that even more blood sugar has to be cleared from your blood stream and with less glycogen storage available, it gets shunted into fat cells.

About 25% of the adult population are insulin resistant. This means that your pancreas

has to pump out a lot more insulin to achieve that same blood sugar clearing effect. It turns out that excessive insulin reduces the ability of your body to burn fat for energy even after the glucose is cleared. Insulin resistance also typically leads to an increase in under the muscle, “visceral fat” around the organs, particularly in the abdomen, and this increases the risk of heart disease. Insulin resistance is even more common if you have diabetes in your family, or if your diet has been high in sugars and other processed carbs, and saturated fats.

Fortunately, by keeping your carbohydrates low-glycemic, and by exercising you reduce the need for this excessive output of insulin, and you keep your fat-burning in high gear. By itself Exercise improves insulin sensitivity.

Even better news is that is improving your sleep immediately reduces the negative effects on your hormone levels & their effect on your body. If you reduce the amount of stress in your life and get more sleep each night, your normal BMR will return. This is not easy in the modern world, with its fast pace, work commutes, paucity of easily available good foods and the general demands on your time, but it can be done.

As for the number of hours of sleep, there’s no one-size-fits-all number of prescribed hours. The right amount for you is based on your individual sleep requirements, although there’s some evidence indicating that somewhere around seven hours a night is ideal from a general health perspective.

Still, numerous factors can influence the amount of sleep you need, such as pregnancy, illness and stress levels, for example. As a general guideline, if you feel sluggish and foggy-headed upon waking, you’re likely not getting enough sleep, or the quality of your sleep is not very good.

Unfortunately, many people are quick to jump on the pill wagon once they start having

sleep problems. But sleeping pills come with numerous side effects and can cause more harm than good – better by far to try to reduce the stressors in your life. At the very least a solid exercise program not only helps burn fat but has been proven to lower the levels of the ‘stress’ hormones in your body.

Bottom line for a healthy metabolism you need at least 7 hours of sleep a night.

See with part 8 next week…

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