Questions tagged [medical-science]

Use this tag for questions about the science of medicine and its practices. Use [medications] for questions about the actual cures that people take, and use [alternative-medicine] for claims about cures and practices which are claimed to be alternative to official medical science

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Does orthodontic work cause (or contribute to) TMJD issues?

I've experienced significant TMJD issues, and I know several other people who have also had TMJD issues. Temporomandibular joint disorder (TMJD or TMD), or TMJ syndrome, is an umbrella term ...
Brian M. Hunt's user avatar
11 votes
2 answers
661 views

Do CFLs irradiate ultraviolet rays in a harmful intensity?

Someone I know complains that Fluorescent lamps are "burning" her skin. I searched for sites that confirmed this and I found: The safety of energy-saving light bulbs is under review over concerns ...
Jader Dias's user avatar
35 votes
2 answers
5k views

Death by lack of sleep -- is it possible?

I had an argument with a friend in college who claimed that it was possible to remain awake with little to no detrimental affects for an arbitrarily long period of time. I am wondering, has anybody ...
Glen Wheeler's user avatar
  • 1,033
57 votes
1 answer
9k views

Is squeezing pimples bad for you?

I've always been told, or notice others being told, or hear it in popular media, that squeezing pimples or blackheads is somehow "bad" for you. Certainly, when there is a chance that the skin breaks, ...
Glen Wheeler's user avatar
  • 1,033
4 votes
0 answers
315 views

Has anyone ever died because they went swimming to soon after eating? [duplicate]

Possible Duplicate: Is it true that bathing after having eaten can make you drown? There seem to be a widespread belief that going swimming after eating is really bad. How stuff works has an ...
Kit Sunde's user avatar
  • 18.6k
25 votes
3 answers
2k views

Do weather changes affect arthritis?

My father always claims he knows when a storm is coming by the pain in his knee. It turns out he might not be as crazy as I thought. Many people with arthritis report varying pain levels as a result ...
Patches's user avatar
  • 8,152
34 votes
2 answers
7k views

Has increased computer use led to increased myopia?

According to ABC News and this Ophthalmological study there has been a significant increase in the number of people with myopic eyesight over a recent 30 year period. From the ABC article: There ...
DuckMaestro's user avatar
  • 3,228
19 votes
2 answers
52k views

Can eating rhubarb kill you?

I've heard that rhubarb leaves are poisonous, and that you can even die from rhubarb poisoning. Is that true?
brian's user avatar
  • 293
17 votes
2 answers
3k views

Is sucking thumbs unhealthy?

It is "common" knowledge that sucking your thumb (for little kids) is a "bad habit. Is there any truth to this, and is it just a bad habit or actually unhealthy for you?
picakhu's user avatar
  • 3,168
5 votes
2 answers
5k views

Does excess sugar affect your immune system/inhibit vitamin C absorption?

There are lots of websites out there with domain names containing words like "healing" and "natural remedy" that suggest that your immune system can be affected by excess sugar. ...
Chris S's user avatar
  • 1,599
21 votes
1 answer
1k views

Is there evidence that glucosamine can help repair joints?

I have heard conflicting views on how effective glucosamine is in treating joint problems. For example here you can see a claim being made about stimulating cartilage growth and curing arthritis. ...
ergodicsum's user avatar
  • 1,050
16 votes
1 answer
5k views

Do mobile phones cause heart troubles?

Almost everytime I have my mobile in my shirt pocket, someone is quick to point out that I shouldn't keep it near my heart. Is there any link between a mobile phone and heart troubles? Is it true?
0xff0000's user avatar
  • 263
18 votes
2 answers
2k views

Do omega-3 fatty acids and fish oil improve concentration and cognitive ability?

In the UK, omega-3 has been a big fad, it seems. You can't seem to get away from products without it. I Although recently it has died down, it mainly stems back to a flawed study on schoolchildren. Is ...
Thomas O's user avatar
  • 11.9k
26 votes
1 answer
10k views

How effective is melatonin for aiding with sleep difficulty?

From Wikipedia: Taken 30 to 90 minutes before bedtime, melatonin supplementation acts as a mild hypnotic. It causes melatonin levels in the blood to rise earlier than the brain's own production ...
ergodicsum's user avatar
  • 1,050
29 votes
3 answers
3k views

Has yoga been shown to have a healing effect?

In a comment to one of the answers of Is there any scientific evidence that prayer can help to heal? Konerak wrote: That's for intercessory prayer. Praying for yourself has been correlated to ...
Kit Sunde's user avatar
  • 18.6k
25 votes
1 answer
6k views

Does intermittent fasting improve immune function through autophagy?

Does intermittent fasting improve immune function through autophagy? Intermittent fasting (also known as, "IF") is the practice of periodically going without food for a period of time, ...
Christian's user avatar
  • 33.5k
20 votes
3 answers
914 views

Are yawns contagious?

I guess that this might be a little bit of an extension of the question "Is yawning contagious across species" that was earlier asked. But my question is, is yawning contagious at all? Is there any ...
user avatar
15 votes
2 answers
3k views

Are left-handed people smarter or more creative?

I frequently hear that left-handed people tend to be smarter or more creative. For example, a disproportionate number of musicians, presidents, and doctors are left-handed. Does being left-handed give ...
user avatar
16 votes
2 answers
6k views

Does earthing reduce oxidative stress and inflammation?

The other day my friend asked what I think about "earthing" claiming that their products provide electrons we used to get from walking barefoot on the earth surface and that they have positive (...
Bazilika's user avatar
  • 255
14 votes
1 answer
594 views

Was there a trick behind this magnetic therapy demonstration?

On Sunday, a lady from church saw me limping, and said that she had something to show me that might help. Tonight, she showed me magnetic shoe inserts. I'm listening politely, and thinking "BS!," ...
John's user avatar
  • 243
29 votes
2 answers
10k views

Do non-FDA approved "male enhancement" pills work?

The airwaves and Internet are full of advertisements for "male enhancement" products: magic pills "guaranteed" to enlarge your penis and increase your sex drive. For example, ExtenZe, perhaps the ...
Patches's user avatar
  • 8,152
78 votes
3 answers
55k views

Is it possible to "die instantly"?

Lots of times, when some great tragedy occurs, one often hears journalists and bystanders alike softening the blow of having some person die by saying something like "at least they died instantly" or "...
Uticensis's user avatar
  • 3,783
16 votes
1 answer
917 views

Do silicone breast implants cause health problems?

An article in Business Week Magazine (June 10, 1991, but can't yet find a link) kicked off a debate that raged throughout the 90's. It stated that silicone breast implants manufactured by two Big ...
Monkey Tuesday's user avatar
20 votes
4 answers
4k views

Does gargling salt water reduce incidence of flu?

Many of the more dubious health sites promote gargling salt water (or peroxide) and swabbing the nasal cavity as a 'natural' prevention for catching the 'flu. Is there any science behind this? I ...
Richard A's user avatar
  • 701
41 votes
3 answers
5k views

Does urine heal jellyfishes' sting?

It is a common myth that, if you're stung by a jellyfish, then pouring urine on the wound is an effective way to treat the injury or ease the pain. That belief is deeply entrenched in the American ...
Borror0's user avatar
  • 7,581
19 votes
1 answer
9k views

Are cramps and muscle soreness caused by Lactic Acid?

I commonly hear that muscle cramps are caused by lactic acid. For instance, this article indicates: Another cause of muscle cramps can be the build up of lactic acid in the muscles. However, ...
Russell Steen's user avatar
23 votes
1 answer
15k views

Does drinking water upside-down help cure hiccups?

I was under the impression that drinking water upside-down worked for curing hiccups (when they worked) merely due to a placebo effect, or at the very least didn't work any better than just drinking ...
Alain's user avatar
  • 5,052
50 votes
2 answers
15k views

Does the "sugar high" exist at all?

I've heard numerous times that eating1 a high quantity of sugar will give you a "sugar high" or "sugar buzz" The high one gets after consuming large amounts of sugar. Also called a "sugar rush." ...
Sklivvz's user avatar
  • 78.7k
22 votes
3 answers
4k views

Does organic food have more vitamins than nonorganic food?

Aside from the issue of pesticides there's the claim that organic food has more nutrients, vitamins and minerals than nonorganic food: Organic food is known to contain 50% more nutrients, ...
Christian's user avatar
  • 33.5k
10 votes
3 answers
3k views

Am I contagious before I'm symptomatic?

Whenever someone is ill with a cold or flu, the 'fact' always seems to be brought up that you're contagious before you start exhibiting symptoms - coughing, sneezing etc. Many people with flu are ...
fredley's user avatar
  • 4,995
17 votes
1 answer
6k views

Does changing your pH balance change your mood?

I have read that eating more alkaline foods and changing your pH balance reduces stress and anxiety. For example, see Eat a Lemon, Feel Less Stressed: Stephanie McClellan, MD, and Beth Hamilton, ...
eat_a_lemon's user avatar
74 votes
6 answers
7k views

Does circumcision lead to a net increase in quality of life?

I was recently surprised to learn that many Americans have been circumcised even though their parents had no religious motivation to go through with it. This in strong contrast with my home country ...
Kit Sunde's user avatar
  • 18.6k
12 votes
2 answers
20k views

Do copper jewellery stains indicate illness?

People wearing copper jewellery quite often have black/green/dark blue stains on wrists and fingers. Articles like Copper Jewelry & Green Skin say that these stains are related to a person's ...
Egle 's user avatar
  • 3,439
22 votes
1 answer
1k views

Is bad posture bad for anything other than your back?

As a musician, I've had a fair amount of tuition on posture. One in particular, who was teaching Alexander Technique said that bad posture could cause seemingly unrelated complaints, as slouching ...
fredley's user avatar
  • 4,995
208 votes
1 answer
24k views

Is popping your knuckles bad for you?

I pop my knuckles fairly frequently, and I have been told on several occasions that doing so is bad for your joints. Is this true? Have there been any medical studies on this?
Peter Olson's user avatar
  • 3,593
61 votes
4 answers
6k views

Is there any explanation for a near-death experience?

One idea I used to hear a lot about was that when people are near-death and saved by medical science that they sometimes see "a light at the end of a tunnel" in a vision. Today I read about an ...
Mark Rogers's user avatar
  • 11.3k
-5 votes
3 answers
5k views

Has any Peer-Reviewed Double Blind Study been made on any vaccine regarding efficacy?

I can not even find one Peer-Reviewed Double Blind Study of any vaccine. Can you point out some studies for me, if they are available?
user avatar
29 votes
1 answer
3k views

Is sugar in fruit juice less likely to cause weight gain than refined sugar?

Refined sugar is regularly described as the root of all evil, while sugar in fruit juice slips under the net. I just noticed my 330ml juice has 33g of sugar in it. There are currently ...
Moz's user avatar
  • 539
17 votes
3 answers
4k views

How much do we know about the brain?

Here's a question that is bound to be controversial but is not intended as such. Do we really know anything at all about the brain? Is neurology really a science? I'm an epileptic patient and ...
user avatar
11 votes
2 answers
29k views

Can bacon help to remove splinters?

Some claim that bacon can help to remove splinters. Is there any good evidence that this makes sense? For example, these splinter remedy lists both suggest that bandaging a piece of bacon (or bacon ...
Eric Wilson's user avatar
16 votes
1 answer
9k views

Does eating papaya everyday work as a contraceptive?

I saw a few hours ago a friend posted on his Facebook wall a claim that some research from the University of Sussex has shown that daily consumption of ripe papaya works as a contraceptive, and to ...
Andy's user avatar
  • 1,073
23 votes
1 answer
3k views

Does using a laptop on your lap lower your sperm count?

It is sometimes claimed that using a laptop on or in proximity of testicles can result in a lower sperm count. This Health.com article claims: Can a laptop computer really affect a man’s ability to ...
eat_a_lemon's user avatar
14 votes
1 answer
54k views

Is eating oranges at night bad for you?

I've always been told that eating oranges at night is bad for you. In fact there is a saying that suggests that you might die if you eat them at night: "Oranges in the morning are gold, afternoon ...
Paulo Pinto's user avatar
52 votes
2 answers
3k views

Is it harmful to your eyes to read in dim light?

Is there any scientific backing to the claim that reading in dim light damages your eyes? Related to: Does watching television damage the eyes?
Kit Sunde's user avatar
  • 18.6k
32 votes
7 answers
4k views

Is cancer a man-made disease?

Not too long ago a story about a study examining mummies for the prevalence of cancer caused a flurry of articles in the media claiming that cancer is a man-made disease. The researchers claim that ...
Mad Scientist's user avatar
  • 43.6k
31 votes
2 answers
4k views

Is the use of parachutes supported by peer-reviewed papers?

While googling about Ben Goldacre, I came across the following reductio ad absurdum argument: Nerd, can you point me to the data that shows that wearing a parachute increases your life expectancy ...
Golden Cuy's user avatar
113 votes
6 answers
16k views

Is alcohol beneficial in small amounts?

It's widely believed that consuming small amounts of alcohol has many health benefits. As a matter of fact, a lot of alcohol might be good for you, as Wired Magazine reports: It’s one of those ...
Patches's user avatar
  • 8,152
10 votes
2 answers
3k views

Does Iridology work?

Iridology claims that it's practitioners can diagnose various illnesses via looking at the eyes of patients. Is there evidence that supports or debunked their claims?
Christian's user avatar
  • 33.5k
22 votes
1 answer
18k views

Do we lose 7 pounds when we die?

I often hear people claim that it is a fact that humans lose seven pounds when they die. Some people believe that this is 'proof' of the existence of the 'soul'. Is there any truth to this claim? I ...
seadowg's user avatar
  • 613
15 votes
3 answers
971 views

Can submerging into water be used to replace defibrillation?

Many years ago I saw an episode of ER where there was a person who suddenly experienced some heart rhythm problems in the hospital. There was a qualified doctor nearby and a defibrillator, but the ...
sharptooth's user avatar
  • 1,881