View Full Version : Random health / nutrition / fitness related studies thread

05-18-2011, 09:22 PM
This thread is where we share any interesting study results we might have seen recently in our internet travels.

I'll kick it off:

Drinking Coffee May Help Prevent Prostate Cancer

According to the study by Harvard School of Public Health, drinking more than six cups of coffee daily can reduce the risk of getting prostate cancer significantly.
From 48,000 men and 12 years study, researchers discovered that those in this category had a 60% less chance of developing lethal prostate cancer compared with non-drinkers when they drank six cups of coffee every day. Drinking decaf and regular coffee had a similar effect in reducing the chance of getting lethal prostate cancer.

For what it is worth it also said drinking 1-3 cups per day lowered the risk by 30% so drink up!

Feel free to post anymore interesting ones you see.


05-22-2011, 07:07 PM
Health Benefits of Salt-Restrictive Diet Refuted

Lowering salt intake has long been advised by healthcare providers for the reduction of blood pressure, especially for those who suffer from hypertension. However, the results of an eight-year study by scientists in Belgium suggest that eating a diet high in salt is not only good for you, but could also reduce the chances of developing heart disease, meaning salt just may be the spice of life after all.


05-22-2011, 07:36 PM
Does garlic protect against vampires? An experimental study

Vampires are feared everywhere, but the Balkan region has been especially haunted. Garlic has been regarded as an effective prophylactic against vampires. We wanted to explore this alleged effect experimentally. Owing to the lack of vampires, we used leeches instead. In strictly standardized research surroundings, the leeches were to attach themselves to either a hand smeared with garlic or to a clean hand. The garlic-smeared hand was preferred in two out of three cases (95% confidence interval 50.4% to 80.4%). When they preferred the garlic the leeches used only 14.9 seconds to attach themselves, compared with 44.9 seconds when going to the non-garlic hand (p < 0.05). The traditional belief that garlic has prophylactic properties is probably wrong. The reverse may in fact be true. This study indicates that garlic possibly attracts vampires. Therefore to avoid a Balkan-like development in Norway, restrictions on the use of garlic should be considered.


05-22-2011, 07:39 PM
Bust size and hitchhiking: a field study.

To test the effect of a woman's bust size on the rate of help offered, 1200 male and female French motorists were tested in a hitchhiking situation. A 20-yr.-old female confederate wore a bra which permitted variation in the size of cup to vary her breast size. She stood by the side of a road frequented by hitchhikers and held out her thumb to catch a ride. Increasing the bra-size of the female-hitchhiker was significantly associated with an increase in number of male drivers, but not female drivers, who stopped to offer a ride.


05-22-2011, 10:06 PM
^^^^ Lol awesome studies fella's! Kinda amazing some of the ones on pubmed!

Breakthrough sees paralysed man walk again

American scientists are claiming a breakthrough in the treatment of paraplegia. A man paralysed from the chest down has regained movement in some of his limbs.

Rob Summers has been in a wheelchair since he was hit by a car in 2006. Now with some help he's taken his first steps in four years.

It's early days yet but scientists say their research bring new hope to people with spinal-cord injuries.

Doctors implanted an epidural stimulator and electrodes into his spinal cord.

The currents mimic those normally sent by the brain to initiate movement.


05-22-2011, 10:26 PM
Lighting up may lead to blindness: Study finds major link between smoking and age-related macular degeneration

The research, by scientists in Japan and the United States, shows that Japanese smokers face four times the risk of age-related macular degeneration, or AMD, than non-smokers.
In AMD, the light-sensing cells in the retina die off over time, causing progressive vision loss.


05-22-2011, 11:21 PM
My wife suffered terribly with pre-clampsia a few years back when she had my daughter and it can be pretty nasty so that's why I posted this one up.

Pre-eclampsia supplement can protect against disease

A dietary supplement given to pregnant women at high risk of pre-eclampsia can reduce the likelihood of the disease occurring, a study says.

Writing in the British Medical Journal, researchers says the presence of an amino acid and antioxidant vitamins in the supplement helps to combat abnormally high blood pressure.

More than 600 women took part in the study in Mexico City.

But experts say more research is needed on the effects of the supplement.

Pre-eclampsia is a serious condition where abnormally high blood pressure and other problems develop during pregnancy.

It affects up to 10% of all first-time pregnancies and is dangerous for both mother and child.

The research team found that 30.2% of women developed pre-eclampsia in the placebo group, 22.5% in the group given a vitamin bar and 12.7% in the L-arginine and vitamin group.

05-23-2011, 04:21 AM
http : // blogs . discovermagazine.com/discoblog/category/ncbi-rofl/

prepare to laugh!

op: it still awes me how some people recommend such low salt diets. some of them come up with 300 mg of sodium per day...lolwut.

05-23-2011, 04:23 AM
Starcraft from the Stands:
Understanding the Game Spectator

Video games are primarily designed for the players. However, video game spectating is also a popular activity,
boosted by the rise of online video sites and major gaming
tournaments. In this paper, we focus on the spectator, who
is emerging as an important stakeholder in video games.
Our study focuses on Starcraft, a popular real-time strategy
game with millions of spectators and high level tournament
play. We have collected over a hundred stories of the
Starcraft spectator from online sources, aiming for as diverse a group as possible. We make three contributions using this data: i) we find nine personas in the data that tell us
who the spectators are and why they spectate; ii) we strive
to understand how different stakeholders, like commentators, players, crowds, and game designers, affect the spectator experience; and iii) we infer from the spectators' expressions what makes the game entertaining to watch, forming a
theory of distinct types of information asymmetry that create suspense for the spectator. One design implication derived from these findings is that, rather than presenting as
much information to the spectator as possible, it is more
important for the stakeholders to be able to decide how and
when they uncover that information.


Late to the party?
I think not! :D

05-23-2011, 05:08 PM
^^^^ good stuff fella's!

Overweight women earn less, get passed over for jobs, says new study

Packing a few extra pounds can hurt a woman's salary and even her ability to get a job, mounting research shows. Yet while women tend to get penalized by the pound, men don't, and perhaps they even gain from girth.
The effect has been found in the United States and elsewhere.
Using data collected in Iceland, one new study examined the association between excess weight and employment. The study found a slightly negative correlation between weight and the employment rate of women, and a slightly positive correlation for men. The results were published in the March issue of the journal Elsevier's Economics and Human Biology.

A separate study conducted by University of Florida researchers found that women 25 pounds above average weight earned $13,847 less a year than an average-weight female.


05-23-2011, 09:53 PM
Health Benefits of Salt-Restrictive Diet Refuted

here's that study they're talkin bout...

05-23-2011, 10:37 PM
Does garlic protect against vampires? An experimental study


Is this pseudo-pubmed ???

05-24-2011, 07:36 PM
Want to catch a lady's eye? Don't smile, study says

A note to single dudes: If you're looking to pick up a woman at a bar, whatever you do -- don't smile at her.

Women are actually less sexually attracted to smiley, happy men, suggests a new University of British Columbia study, published online today in the journal Emotion. If that's surprising to you -- it was surprising to lead researcher Jessica Tracy, too. "I wouldn’t have believed it if we didn’t go out and replicate it three times," says Tracy, an assistant psychology professor at UBC.

Researchers asked more than 1,000 volunteers to rate the sexual attractiveness of hundreds of images of the opposite sex. (All were heterosexual, ages 17 to 49 years, with a median age of 21. Fifty-two percent of participants were Asian, and 48 percent were Caucasian.) In the images, the men and women pictured were demonstrating one of three emotions: happiness, pride or shame -- plus a "neutral" image thrown in there, too. They found that women ranked the smiling guys as less attractive -- but they were into the prideful and ashamed men. But the male participants were most attracted to the smiling women, and least attractive to the ones who seemed proud.


05-26-2011, 01:48 AM
Let's bump this one with Lyle McDonald's new research review:

A 45-Minute Vigorous Exercise Bout Increases Metabolic Rate for 14 Hours – Research Review

Knab AM et. al. A 45-Minute Vigorous Exercise Bout Increases Metabolic Rate for 14 Hours. Med Sci Sports Exerc. 2011 Feb 8. [Epub ahead of print]

INTRODUCTION: The magnitude and duration of the elevation in resting energy expenditure following vigorous exercise have not been measured in a metabolic chamber. This study investigated the effects of inserting a 45-min vigorous cycling bout into the daily schedule versus a controlled resting day on 24-h energy expenditure in a metabolic chamber.
METHODS: Ten male subjects (ages 22 to 33 yrs) completed two separate 24-h chamber visits (one rest and one exercise day) and energy balance was maintained for each visit condition. On the exercise day, subjects completed 45-min of cycling at 57% Wattsmax (mean±SD, 72.8±5.8% VO2max) starting at 11:00 am. Activities of daily living were tightly controlled to ensure uniformity on both rest and exercise days. The area under the energy expenditure curve for exercise and rest days was calculated using the trapezoid rule in the EXPAND procedure in the Statistical Analysis Systems (SAS) and then contrasted.
RESULTS: The 45-min exercise bout resulted in a net energy expenditure of 519±60.9 kcal (P<0.001). For 14-h post-exercise, energy expenditure was increased 190±71.4 kcal compared to the rest day (P±0.001).
CONCLUSION: In young male subjects, vigorous exercise for 45-min resulted in a significant elevation in post-exercise energy expenditure that persisted for 14-h. The 190 kcals expended post-exercise above resting levels, represented an additional 37% to the net energy expended during the 45-min cycling bout. The magnitude and duration of increased energy expenditure following a 45-min bout of vigorous exercise may have implications for weight loss and management.


05-26-2011, 08:03 PM
Wow awesome thanks Hank! Interesting stuff!

I mean we knew vigorous exercise boosted metabolic rate but that is cool in that it shows exactly how much with the other factors controlled. 190 cals isn't a huge difference but stacked up over the year could make a real difference.

I wonder how much it is elevated from 45 mins of weight training?

05-26-2011, 08:05 PM
Not much after weight training, and the subjects in that study were performing some high intensity work, which isn't exactly relevant to the cardio that most people do.

05-26-2011, 08:53 PM
Not much after weight training, and the subjects in that study were performing some high intensity work, which isn't exactly relevant to the cardio that most people do.I'd been led to believe weight training was awesome for raising metabolic rate?

07-05-2011, 03:29 PM
Thought I'd bump this one up with a great finding about a low cal diet basically curing type 2 diabetes in a study out of the UK:


People who have had obesity-related type 2 diabetes for years have been cured, at least temporarily, by keeping to an extreme, low-calorie, diet for two months, scientists report today.

The discovery, reported by scientists at Newcastle University, overturns previous assumptions about type 2 diabetes, which was thought to be a lifelong illness.

In the UK about two and a half million people have been diagnosed with diabetes, the large majority with type 2, and numbers are rising across much of the world. The condition has to be controlled with drugs and eventually insulin injections. It can cause blindness and end in foot amputation, as well as shortening life.

The results of the Newcastle investigation, though the study was small, demonstrated that full recovery was possible, not through drugs but through diet.

Eleven people with diabetes took part in the study, which was funded by Diabetes UK. They had to slash their food intake to just 600 calories a day for two months. But three months later seven of the 11 were free of diabetes.

07-05-2011, 03:34 PM
^ Here is the link to the full-text and citation for the actual study:

Reversal of type 2 diabetes: normalisation of beta cell function in association with decreased pancreas and liver triacylglycerol (http://www.diabetologia-journal.org/Lim.pdf), E. L. Lim & K. G. Hollingsworth & B. S. Aribisala & M. J. Chen & J. C. Mathers & R. Taylor. Diabetologia. DOI 10.1007/s00125-011-2204-7

07-05-2011, 04:23 PM
Women on low calorie diets pre-conception are more likely to have girls than boys.

You are what your mother eats: evidence for maternal preconception diet influencing foetal sex in humans

Facultative adjustment of sex ratios by mothers occurs in some animals, and has been linked to resource availability. In mammals, the search for consistent patterns is complicated by variations in mating systems, social hierarchies and litter sizes. Humans have low fecundity, high maternal investment and a potentially high differential between the numbers of offspring produced by sons and daughters: these conditions should favour the evolution of facultative sex ratio variation. Yet little is known of natural mechanisms of sex allocation in humans. Here, using data from 740 British women who were unaware of their foetus's gender, we show that foetal sex is associated with maternal diet at conception. Fifty six per cent of women in the highest third of preconceptional energy intake bore boys, compared with 45% in the lowest third. Intakes during pregnancy were not associated with sex, suggesting that the foetus does not manipulate maternal diet. Our results support hypotheses predicting investment in costly male offspring when resources are plentiful. Dietary changes may therefore explain the falling proportion of male births in industrialized countries. The results are relevant to the current debate about the artificial selection of offspring sex in fertility treatment and commercial ‘gender clinics’.


Take home message:

-Want a girl? Start cutting.
-Want a boy? Start bulking.

07-05-2011, 06:48 PM
Interdesting. Even though males can donate both the XY chromosomes while females only donate X.

Free excuse!

07-06-2011, 12:38 AM
Women on low calorie diets pre-conception are more likely to have girls than boys.


Take home message:

-Want a girl? Start cutting.
-Want a boy? Start bulking.

I wonder how great of an effect increasing the study size would have on the outcome.

I.E. from 740 to several thousands.

I imagine that the percentages would get closer and closer to 50/50...

franko man
07-06-2011, 02:41 AM
I wonder how great of an effect increasing the study size would have on the outcome.

I.E. from 740 to several thousands.

I imagine that the percentages would get closer and closer to 50/50...

Agree. I believe that nutrition has minor effects on determining genders.. could have more to do with genes or other biological phenomenons
Religious people could argue that genders are determined by certain religious factors, yet others would not agree.

07-06-2011, 07:29 AM
I wonder how great of an effect increasing the study size would have on the outcome.

I.E. from 740 to several thousands.

I imagine that the percentages would get closer and closer to 50/50...

I wouldn't recommend anyone change their diet because of that one article. I didn't think this was suppose to be a serious thread. lol

07-06-2011, 07:46 AM

Chickens Prefer Beautiful Humans
S. Ghirlanda, L. Jansson, M. Enquist; Stockholm University; 2002)

We trained chickens to react to an average human female face but not to an average male face (or vice versa). In a subsequent test, the animals showed preferences for faces consistent with human sexual preferences (obtained from university students). This suggests that human preferences arise from general properties of nervous systems, rather than from face-specific adaptations. We discuss this result in the light of current debate on the meaning of sexual signals and suggest further tests of existing hypotheses about the origin of sexual preferences.
http://translate.google.com/translate?hl=en&sl=fr&u=http://cat.inist.fr/%3FaModele%3DafficheN%26cpsidt%3D15444189&ei=13MUTozdNc7RiAKpmMHUDQ&sa=X&oi=translate&ct=result&resnum=4&ved=0CDoQ7gEwAw&prev=/search%3Fq%3DPressures%2BProduced%2BWhen%2BPenguin s%2BPooh%2B--%2BCalculations%2Bon%2BAvian%2BDefecation%26hl%3De n%26client%3Dfirefox-a%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26biw%3D1280%26bih%3D591%26prmd%3Divns

Meyer‐Rochow V, Gal J.
Pressures produced when penguins pooh — calculations on avian defaecation.
Polar Biology 2003. 2756–58.

Chinstrap penguins and Adelie generate considerable Pressures to propel Their faeces away from the edge of the nest. The Pressure Can Be Involved approximated if the Following parameters are Known: (1) distance the faecal material travels Before it hits the ground, (2) Viscosity and density of the material, and (3) shape, aperture, and height above-the-ground orificium of the sale. With all of These parameters Measured, Calculated That we fully grown penguins generate Pressures of around 10 kPa (77 mm Hg) to expel watery material and 60 kPa (450 mm Hg) to expel material of High Viscosity similar to That of olive oil. The Forces Involved, lying well Above Those Known for human, are high, do not aim to lead year energetically wasteful turbulent flow. Whether a bird chooses the leadership it Into Which Decides to expel faeces icts, and What role the wind plays in this, remain unknown.

07-06-2011, 11:46 AM
I wouldn't recommend anyone change their diet because of that one article. I didn't think this was suppose to be a serious thread. lol

Haha you got me...