Showing posts with label Health. Show all posts
Showing posts with label Health. Show all posts

Tuesday, August 12, 2008

When "Healthy" Food Really Isn't.

Homestyle


Ok, so you've learnt how to avoid so called "fatty" and "sugary" foods and try to eat as much healthy food as possible. Mc Donalds and KFC are excluded from your choice of restaurants. So you decide to join the hippies and eat the allegedly "healthy" sandwichies at Subway.

Subway promotes itself of having a very healthy menu. At first glance, their sandwiches do really seem promising. The roast beef sandwich has only 600 calories (a daily requirement is roughly 2000calories) and fills a person up quite well. It also has about 35g of protein, or half of an adult's daily protein requirement.

But what happens when you add dressing to the sandwich? Most people add cheese, a free option, as well.

I was working at a community health center and having a subway sandwich for lunch in the staff room. Ok, on campus it would have probably been considered a healthy meal, but amongst allied health workers, it wasnt. Around me people were people who brought along their home cooked meals. Lean fillets with steamed vegetables, Moroccan couscous, bread cheese vegimite and avocadoes, sandwiches and fruit.

I've always felt very lethargic after eating the allegedly "healthy" subway foot long sandwiches, but having lunch amongst people who included dietitians prompted me to scrutinize the "healthy" nutrional breakdown on my subway tissue.

Dont be fooled: SUBWAY IS NOT NEARLY AS HEALTHY AS THEY PROMOTE THEMSELVES TO BE

The roast beef sandwich has 900mg salt for 290 calories! On top of that, they will sprinkle salt and pepper on all sandwiches unless you specifically ask them not to. Then when everything is ready, they will ask you if you want any kind of dressing. Almost everyone will choose to top their sandwich with dressings. All of their dressings contain high amounts of salt as well.

The recommended daily intake for salt is between 1000 and 2000 mg. A person eating 2200 calories worth of subway sandwiches would be consuming at least 7000mg of salt - assuming that he chose not to add cheese (high in salt), or dressings, or shaken salt. I wouldnt be surprised if the figure approached 8,000 mg of salt in a real world scenario.

A Big Mac actually ends up being healthier than a subway sandwich! 2200 calories of Big Macs would only contain 1150mg of salt! Sure, it does contain more fats, but what few people realize is that it only contains about 10g of saturated fat. Hence, 2200 calories in the form of Big Macs would provide only two times the recommended daily intake of saturated fat.

Summary:

2200 calories worth of Big Mac:
  • 1150mg salt (RDI 1000-2000) OK.
  • 40g saturated fat (RDI <20g)>

2200 calories worth of Subway Roast Beef sandwich:
  • 8000mg salt (RDI 1000-2000) EIGHT TIMES the recommended daily intake.
  • 15.2g saturated fat (RDI <20g)>

Friday, June 13, 2008

Zeitgeibers



I've been caffeine free for almost a week now. The exams are in 4 days. Making espresso is just too time consuming and i dont want to be reliant on it for the exam. One way I found helpful to reset my circadian rhythm (sleep cycle) was by using zeitgeibers - environmental cues that our bodies use to set our natural clock.

Zeitgeibers:
  • Leave the curtains open at night. Let morning light wake you up.
  • Darken your room 5 hours before bedtime.
  • Listen to loud, lively music in the morning.
  • Listen to soft, slow music at night.
  • Exercise in the morning to get your metabolism up.
  • Let your metabolism wind down towards the end of the day. Do not exercise at night.

Saturday, April 05, 2008

A Bit About Booze

smirnoff tarik!



...And we grant you nourishment from the fruit of date-palms and vines: from it you derive intoxicants as well as wholesome sustenance -in this there is a message indeed for people who use their reason. (Q.16:67)



It started with wine...
The wine industry rejoiced when studies showed that drinking wine was good for the heart. It single handedly increased wine consumption globally, and all of a sudden everyone was doing studies on the benefits of alcohol.

A few years of marketing bliss later...
Follow up studies showed that substances previously though to be beneficial in wine werent really beneficial at all, or were present in levels too low to have any effect on cardiovascular function. This was a bad thing for the wine industry, but few people ever learnt about it because the wine industry spends alot of money in advertisements. Later it was discovered that the active ingredient in wine was alcohol itself.

The epidemiological grapevine...
Alcohol is a very tricky stubstance to research. No ethics committee would approve a randomized controlled trial where half of the participants are given a fixed dose of alcohol while another half were given a placebo. Even if they did, how would you design a placebo for alcohol? Hence, most studies are based on evidence from the field epidemiology (statistics). Statistically at least, people who dont drink at all die earlier than people who drink moderately. People who drink alot die much earlier than people who dont drink at all.

The problem with the statistics...
Early studies grouped lifelong abstainers with people who have quit drinking for up to six months. That was a problem because people who quit drinking usually did so because they had some kind of disease (caused by too much alcohol, such as cirrhosis) and were more likely to die young anyway. This statistical problem, along with a few others, were corrected and adjusted for in further studies. The results are clear now.

So what does research really say about alcohol?
Alcohol literally kills your heart in large doses and you can drop dead from sudden death brought on by death of heart muscle. In small doses, alcohol appears to be good for the heart after all. However, research has only proven this to be true in men over 45 years of age. Early research also shows that people who drink one standard drink a day are 30% less likely to get type 2 diabetes (1). It also increases the proportion of "good" HDL cholesterol and reduces the amount of clot inducing "bad" LDL cholesterol in the bloodstream.

A bit about culture..
Here in australia, it is culturally acceptable, and even "cool" amongst youth to get drunk. An hour's of work at the supermarket pay about AUD16. Four litres of cheap low proof wine (30 std drinks) costs only AUD8. Ok, that's really vile stuff, but for AUD16 you could get five bottles of premium beer, each containing 1.3 standard drinks. The human body only eliminates about one standard drink an hour. Five standard drinks is enough to make a person drunk. Since one standard drink is not very much, it is really easy to drink too much. It is much less than what people typically consume in one sitting. A can of mid strength beer is about 1.3 standard drinks. 30ml of 38% spirit is considered one standard drink. How many people take only one beer at the pub?

My pseudo-opinion: Positive effect of low risk drinking ( less than 1.5 std drinks a day)
It is quite clear that people who drink moderately do derive health benefits from alcohol. The human body is incredibly complex and researchers are still unsure how alcohol does the things it does. Cardiovascular disease is essentially an inflammatory disease whereby the linings of the cardiac vessels dont function properly. Stress naturally causes the production of hormones that function to help a person get through a period of stress. Blood clotting factors are primed for use and the body is put into a state of tension. In the good ol caveman days, that was a good thing. Your body has to be ready to run away from the sabertooth tiger, and you had to stay awake at night if you sensed a predator in the bushes. In modern times, the same stress responses that once provided the human body with an edge in survival are now activated frequently by things such as work deadlines and lack of sleep. Alcohol helps dull that stress response and makes people more relaxed. That alone could be one of the reasons behind the health benefits of alcohol. A nip of whiskey before bed calms a persons nerves and makes him/her less anxious/stressed. It is not surprising that some cultures, such as the french, have successfully integrated alcohol into their lifestyles. Moderate consumption at the dinner table is a good thing.

The BIG picture.

Alcohol is bad for society. Period. The Australian Medical Association plainly states that alcohol leads to "an unacceptably high level of sickness and social disruption". It is estimated that in Australia, roughly 80,000 life years were lost as a result of drinking in 2001. This was contrasted to the estimated 61,000 life years gained as a result of moderate low risk drinking. The bottom line is that alcohol consumption costs taxpayers about AUD500k (RM1.5mil) a day in healthcare, emergency services and motor accidents.


They will ask you about intoxicants and games of chance. Say: "In both there is great evil* as well as some benefit for man; but the evil which they cause is greater than the benefit which they bring." (Q.2:219)



(1) Koppes LL, Dekker JM, Hendriks HF, Bouter LM, Heine RJ: Moderate alcohol consumption lowers the risk of type 2 diabetes: a meta-analysis of prospective observational studies. Diabetes Care 28:719–725, 2005. -and- Howard AA, Arnsten JH, Gourevitch MN: Effect of alcohol consumption on diabetes mellitus: a systematic review. Ann Intern Med 140:211–219, 2004.

Sunday, September 16, 2007

The Sesquipedalian Miracle Pill

sɛskwɪpɪˈdeɪliən


How many psychologists does it take to change a lightbulb?
Only one, but the lightbulb has to really want to change.

Last friday, i learnt of a drug that promises to revolutionize medicine. Here's some facts that I gathered from the lecture:

1) It has been shown to be just as effective at suppressing cough as any current cough medicines.
2) It does produce side effects, although they are completely temporary and non-harmful.
3) It reduces anxiety.
4) It aids in reactivating existing bodily functions such as disease immunity.
5) It reduces the biological effects of stress, improving healing and regeneration.
6) Helps prevent cancer by improving activity of anti cancer cells.
7) May prolong lifespan and improve quality of life.
8) Patients are a little wiser after completion of treatment if they are given a special vérité pill.
9) It has half the potency of Morphine in reducing post operative pain.
10)

Many varieties of the drug exist, but it has been noted that the more sesquipedalian versions of the drug have a more potent effect. Similarly, more unpleasant tasting oral versions of the drug are more powerful. Injections are the ideal way for dispensing the drug with maximum effect. It could be surgically administered but it is no longer done for ethical reasons.

The name of the most efficient form of the drug is:
dioxyribosynctio-2-isoflaviogen activated hex-4-chromino-telomerase.

also known by it's commercial name: "Placebo". It has been proven by randomized controlled trials that no cough medicine actually works. Codeine makes you sleepy and doesnt count as people cough less when they are sleepy. and yes, it does produce side effects... depending on what the patient is told, of course.

Thanks for visiting ezralimm.blogspot.com. I shall end this post with a sesquipedalian sentence: Placebos make people feel that they have been treated and reduces anxiety and stress that in turn reduce biological factors such as corticosteroids that suppress the immune system that also protects the body from cancer which is a known factor in reducing life expectancy and quality of life.

Wednesday, August 15, 2007

Satiety


Pick a breakfast. Option one: two slices of toast, lightly buttered, a slice of lean cold meat (veal, beef, turkey, ham, cat, dog...any meat low in fat), 200ml Orange Juice. Option two: Two hardboiled eggs, a small bowl of oat porridge, 200ml Coke.

Option one sounds healthy, but it really isnt. It will give you a sugar rush and you will be hungry in two hours. Orange Juice contains as much sugar as Coke! Option two is a smarter option. Eggs and oat porridge give you a great sense of satiety. 150 cal worth of oats and 180 cal worth of eggs will keep you full for hours. Coke gives you the same sugar rush as Orange Juice, so it's not as bad as what people say (of course, OJ has more nutrition in it).

The human being is a perfect creation...em... well, not exactly. One of the interesting things about studying medicine is that you get to know (figuratively) all the things that can go wrong with the human being. It's a science - and like all things human... isn't perfect. Paradigms change with time. What's considered unhealthy may one day be considered healthy. So called "research" is often affected by what is known as "confounding" factors. For example, wine companies used statistical data to claim that wine prevents cardiovascular disease. Yet the data was misleading. It is now know that the "regular wine drinkers" in the statistical surveys were less likely to overindulge in fatty foods and fast foods as they were more likely to be affluent (rich) and health conscious. The lifestyle of wine drinkers was a confounding factor to the study. Im not saying it's wrong to believe statistics, but one has to be wary.

Occasionally, it's impossible to get proof without the use of statistics. Modern medicine is pretty advanced and many biological mechanisms are now studied and targeted by drugs. However, many drugs are also based on statistical evidence without any sound theory of cause and effect behind them. Asprin has been prescribed since antiquity yet until now, nobody really knows how it works. It just does.

.

Wednesday, May 02, 2007

The ESSENCE of Health

X marks the spot. A goal not too far away...


Education, Stress management, Spirituality, Environment, Nutrition, Connectedness and Exercise.

The E.S.S.E.N.C.E. model. A nice summary of what is needed to be a healthy person. I am content with my Education and my living Environment. But I am still trying to tackle the other five issues.

My Nutrition has improved greatly since the course began. My resolve to understand why I was underweight led me to measure calories. Eventually, I discovered that I had an unusually high level of postprandial anorexia. As opposed to anorexia nervosa (eating less trying to lose weight), I ate whenever and whatever I wanted. But I felt "full" too quickly and as a result, I was effectively starving myself each day ever so slightly - I never really noticed. I've upped my calorie intake to about 2500-3000Cal a day. Along with meat, cheese and eggs, I take lots of fruits and leafy greens on top of healthy servings of oats, wheat biscuits and milk. I have never felt better.

Connectiveness is a sticky subject for me. I dont really 'click' with groups of people. I enjoy my individuality and try to maintain good relations with those around me. Although there are some days where I believe I do not socially interact enough. I realize that on those days, I tend to be more anxious and less focused/mindful. I also find falling asleep at night more difficult. So yes, connectiveness is really essential to a person's wellbeing. Perhaps being socially in touch with others lets my subconscious self know that everything is good and well. As a result, stress hormone levels decrease and it's easier to fall asleep. The number of those relatively 'socially isolated' days has been decreasing and I take that as a positive sign that my policies on social interaction are working - despite not hanging around with a regular group of people ('clicking').

Exercise wise, I was totally incompetent back home in Malaysia. I tried going to the gym but found it boring. Didnt exercise much other than the occasional swim or game of badminton. Now in university, in the absence of distractions (sat TV, PS2, Xbox, Gaming PC), I have a much much healthier lifestyle. I have trained to a point where I can swim at medium speed, freestyle, non-stop for 50 laps (2.5km)! My weekly exercise schedule begins on Mondays (30 laps, 1.5km) and Wednesdays (50 laps, 2.5km). When I started, I could barely do 10 laps without having to have a break. I hope to push my endurance to 5km/100laps by the end of the year. On friday night, I play badminton from 7pm-10.30pm. On Sunday afternoon, I play badminton from 2pm-6pm. I've been trying to improve my kinesthetic knowledge as well. Dance classes at Monash dancesport every tuesday afternoon followed by Olli's dance class at the halls at night. Plan to go for another one on Monday night if I have the time.

I feel that i've very recently acquired my mature sense of Spirituality. To be at peace with the world and to understand the why of me. It came as my thoughts matured. It coincided with the time I turned 21 and came to be independent abroad. I will no doubt progress further Spiritually as years pass by. While reason and rationality gives answers to the question of 'how', spirituality gives answers to the question of 'why'. Spirituality soothes the soul and offers temporary relief to a soul filled with a sense of longing.

If my purpose in life were to be with her, then in future we shall be together.
If not, we shall be apart.
Either way, I wish her well and I hope we both find happiness,
wherever fate leads us...
I pray she gets to where her heart desires...


Finally, I have got to deal with my stress better. If i let it get to me, I lose sleep. If i lose sleep, i cannot focus in lectures. If I cannot understand my lecture or if im overwhelmed with work, I get stressed. It's a vicious cycle. Conclusion: I have to be on top of my work all the time. Starting to get the hang of it. To familiarize myself with my work. It's not about rote learning and it's not purely based on understanding concepts either. It's about familiarity and exposure. How each piece of information integrates itself with my conscious thoughts and rational processes. I've got my first anatomy practical tomorrow. I cant wait. Tonight, I shall consult the oracle on things I have to know in order to understand my lectures better. She is an elderly lady I call Aunt Wikipedia.

Im finding the MBBS course at Monash surprisingly progressive. The ESSENCE model was part of the health enhancement program for first year MBBS students. We are also taught of mind-body interactions and how feelings (yes, feelings and emotions) can quite literally make a person physically ill. But more on that later...

Monday, March 26, 2007

STOP! Wait a second...

Road Sign Near Caufield. Unique perspective from top deck of a double decker bus


I eat whenever and whatever I want to eat. But I'm only 52kg and 174cm with 0.1% body fat. Yup. Im clinically underweight. I was wondering how this could be. I play badminton twice a week, squash once a week, and swim once or twice a week. I also play pingpong whenever it's convenient. Despite all the exercise, i didnt seem to be putting on weight! So I bought a weighing scale and measured my calorie intake. To my surprise, even if I ate whenever and whatever I wanted, my daily intake was between 1600 and 1800 calories a day. W00t. I was malnourished!

Ok, since coming to australia I have been a bit of a health nut - the type of person who puts effort into taking a daily dose of riboflavins (in beetroot, fresh blueberries, cranberries etc). I try to limit my consumption of unhealthy foods. I'm now trying to gain weight. Would like to push myself to 60kg over the next year. Yup. 8kg in one year. The natural way.
NO supplements. NO shortcuts. My diet here has been super healthy. I start my days now with a ~600cal breakfast of oats/bread/cereal, milk, orange juice and a serving of driedfruit/raisins/bananas.

My daily target is 2500-3000cal of
healthy food a day with roughly 100g of protein. Anyway, Im starting to get used to eating a proper breakfast. I used to feel sick eating so much for breakfast. Yup, I could have gotten 600cal from a bag of chips easily - but believe me, a 400cal serving of oats is difficult to swallow, even with dried fruits and sultanas. If I ate unhealthy foods (read: icecream/fries/chips/shortbread), 2500 calories would have been easy. But no, im not going to indulge on chips and cake and shortbread. I typically eat extra trim lamb/beef/fish steak for dinner nowadays. I get most of my roughage from fruits and salads. Carbohydrates come from bread, potatoes and biscuits. Its a very balanced diet - and I hope in the months to come I will be healthier than ever before.

A few people commented that I should go to the gym. Well,
if I wanted to bulk up (like bodybuilders do), i'd have to eat closer to 4000cal a day with 200g of protein. That borders on unhealthy so im not going to do it. Dont know why, but I dont find it a challenge. I've tried doing weight training but never could do so consistently (unless i was unusually bored... which has NEVER happened since I got here. Heck. I've never even spent a weekend to relax!) as I dont find myself motivated to go. I guess i just prefer to play games where i can beat someone. I like the challenge. I finally beat Krish (A good player in my hall) and im looking forward to the badminton tournament this coming sunday. I swim trying to push my current freestyle endurance (medium speed) past 50 laps so I could take part in the Melbourne open ocean swimming marathons (always wanted to as it's a sport that suits my build).