Po shfaqen postimet me emërtimin hiv/aids. Shfaq të gjitha postimet
Po shfaqen postimet me emërtimin hiv/aids. Shfaq të gjitha postimet

31 gusht 2009

Health & Science Update

This is a loooooong one.... Science doesn't wait for me.

Circumcision has been on the medical news for a few years now, with medical authorities claiming that it reduces the risk of HIV transmission. Should we encourage it? Are there differences in transmission between homosexual and heterosexual men? This article answers some of these questions. This other article addresses the shortcomings of circumcision among gay men.

I guess I should stop smoking the hookah (or shisha, as Brits apparently call it). A study reported by the BBC discovers that it causes as much harm as cigarettes.

There is now an Encyclopedia of Life, culling information on all known species in the world. The resources will be available and useful to people from many fields of life.

Scientists have discovered that dog hair types are controlled by three genes. Moreover, their discovery might help scientists learn more about cancer genes in humans, since cancers in dogs and humans are very similar.

Mercury levels in fish are rising, according to an article in The Economist. The traces are high in freshwater fish because of mercury leaked into freshwater streams and rivers from the coal industry. They are the highest in larger fish, however, such as shark and tuna, since they accumulate in the food chain.

The Economist also reports that the origin of men's muscle mass and its differences with women's muscle mass is the product of evolution... sexual selection, to be precise.

The intake of folic acid, which helps women to get pregnant, is a territory to be treaded very carefully, since high amounts of the substance in the body can help the growth of cancers.

The New York Times summarizes a study by the New England Journal of Medicine pointing out that people who undergo imaging tests are exposed to more radiation than is allowed for a one-year period among nuclear power plant workers.

According to Reuters Health, one's diastolic blood pressure can affect one's memory and other cognitive functions. For every increase of 10 mm Hg in diastolic blood pressure, there is a seven percent increased chance of developing cognitive impairments.

It has been found that the human papillomavirus (HPV), which has been considered for some time as a cause of cervical cancer, is also the cause of about half of the instances of penile cancer in men.

Sugar is now linked to greater risks for heart disease via the obesity it creates, primarily through the intake of soft drinks high in sugar. Even a single can of soda contains more sugar than the total recommended daily sugar intake.

Second-hand smoke was never a friend of passengers stuck in a car with a smoker. Now there is proof of it.

Nobody likes the dreaded colorectal exam, but males of South Asian descent are more likely to refuse to take it, despite being at high risk for it colorectal cancer. Overall, fewer than 60% of people who need it are getting tested.

Drug advertised on TV for cancer patients may create tensions between a patient and his/her doctor, not help patients at all, or even worsen their condition with side effects if the advertised drugs are taken.

This article is in French, but it basically says that the sun has lost its spots and has been cooler in the past few weeks.

Israeli scientists have constructed abdominal tissue, which, when injected in the heart, can restore and strengthen the areas of the heart that have been damaged by a heart attack. The experiment only took place in rats.

Low-carb diets, whether high in fat or protein, can increase the risk of atherosclerosis by 9% of 15%, respectively.

Yet another adverse effect of obesity in women: 40% higher chance of asthma in 'apple-shaped' women. I know, I never heard of the 'apple-shaped' either... and doesn't seem particularly appropriate since they're talking primarily about the weight around their abdomens. That would make them pear-shaped.

Hormonal therapy in treating prostate cancer in men can create bigger problems for them, such as bone loss and hot flashes. They suppress testosterone production and, I'm guessing, inject female hormones, which would explain the menopausal side effects.

Scientists are able to create viable monkey embryos and live monkeys from eggs whose mitochondrial DNA had been removed, paving the way for women to choose the procedure if they want to protect their children from hereditary problems carried in mitochondrial DNA.

This short Q&A in The New York Times describes the differences and similarities in age-related hearing loss between men and women.

Hip fracture rates have been steadily declining for the past 20 years in both Canada and the U.S., despite an ever-aging population. Experts credit multiple reasons.

E.D. problems in men are not so easy to solve. Most importantly, they are indicative of deeper-lying health problems.

Skin cancer is more prevalent among the elderly because their skin is less able to signal the immune system to send T-cells to the damaged area. The problem may be reversible and may give clues about how to remedy it in other tissues.

This is unbelievable! Scientists were able to view a molecule at the molecular level. The image and the diagram of the molecule are at this link.

Doctors at MIT have created a monitor the science of a grain of rice in order to track the development of tumors inside a patient's body.

The video below describes and explains 'aquaponics,' a cohabitation of fish and plants, whereby the fish excrement feeds the plants and, in return, plants clean the water when absorbing those organic molecules.

10 gusht 2009

Clintons v. HIV in Africa

On the one hand, Bill reaches a deal with drug companies in America to provide a year's supply of anti-retroviral medicine for under $500.

On the other hand, Hillary pledges greater aid to Angola in order to fight HIV and AIDS.

I must say, it's better than sending Christian missionaries that preach abstinence and eschew the use of prophylactics.

09 gusht 2009

Health & Science Update

Garlic does help with cardiovascular health, but since you're going to have garlic breath, anyways, better go fresh. Garlic powder won't quite cut it.


And if you want to get a good night's sleep, keep it cool... literally. Lower temperatures help you get better sleep.

Just don't keep it so cool at work. Although a nap may help your productivity in the workplace, a deep sleep wouldn't fly so well with the boss.

A new imaging technique allows scientist to visualize the entire HIV genome for the first time.

Japanese scientists are now able to grow functional teeth of natural texture and strength in laboratory mice. The technique has yet to be tested in humans. More details here.


This 40-year study relates longevity to sperm vitality. The faster your little guys, the longer you live.

Scientists have also identified the cells that cause itching, paving the way for pain relief in individuals in whom itching and pain are related. More details here.

Beet juice is soon to become the drink of choice for health and exercise freaks, since it boosts stamina and also helps with heart health.

This was entirely news to me: the Earth hums. Now scientists know why. We still cannot hear it with our ears, though....


And here's another reason why you should get married (though I'd personally still advise against it): spouses make good organ donors, almost as good as blood relatives.

We also learned that Aesop was right about rooks using rocks to raise the level of water. This article and the accompanying video can attest to that.

02 gusht 2009

It's a Sick, Sick, Sick World

Last night I posted a link about the pneumonic plague in China. Today, the BBC reports on the same thing.

What's more, the AP has an article about a new strain of the HIV virus, possibly originating in Yaounde, Cameroon.

On top of that, there's daily news on the fatal A1H1 flu virus (a.k.a. swine flu) that I don't care to recount here.

Honestly, I don't think we have to fear a comet or asteroid impact or even global warming or nuclear warfare; I think the world (or humanity, at least) is going to succumb to bacteria and viruses.

(I honestly don't mean to sound pessimistic and apocalyptic. It's just food for thought.)