11
votes
Did science backtrack regarding coffee causing dehydration?
Why it has been long assumed that caffeine or coffee is dehydrating?
Because caffeine is a mild diuretic - it stimulates water excretion through the kidneys. But the amount of water you consume with ...
- 15.8k
7
votes
Accepted
Is it true that alcohol is the only "drug" one can die from during a drug-withdrawal? What are the symptoms of the withdrawal?
In addition to alcohol, benzodiazepines and the opiates (rare), another class of drugs that can cause lethal withdrawal symptoms is the barbiturates. In fact, they present the most dangerous ...
- 9,743
4
votes
Accepted
If alcohol and coffee are both diuretics -- why do so many intoxicated ppl drink coffee to sober up? Dehydration concern.
No, nothing will "sober up" a drunk; only time does that. What coffee does is provide caffeine, a stimulant. The stimulant effects will increase alertness, but they will do nothing for perception, ...
- 9,743
4
votes
Why is aspiration not commonly used for IM vaccine administration in the U.S.?
The CDC gives this as the reason why not:
Aspiration before injection of vaccines or toxoids (i.e., pulling back on the syringe plunger after needle insertion but before injection) is not necessary ...
- 5,968
4
votes
Accepted
Does eating any kind of seafood lengthen the healing time of an injury?
There is some weak evidence that high intake of fish high in omega-3 fatty acids EPA and DHA (salmon, mackerel, roe, anchovies, tuna, herring, sablefish, sardines) or fish oil capsules might delay ...
- 15.8k
4
votes
How is a beard dirtier than a toilet?
A better comparison than "beard vs toilet" may be "face with beard vs face without beard."
This is actually a reasonable concern in the context of healthcare, where healthcare staff can be a vector ...
- 13.7k
4
votes
Does 'Stockholm Syndrome' really exist?
Stockholm Syndrome does exist. It has an exceptionally high face validity. It does have this attribute due to many case reports available in the non-medical newspapers. You see a pattern, you have a ...
- 6,887
3
votes
Accepted
Does photographic (eidetic) memory exist or is it a medical myth?
Yes, both eidetic memory and hyperthemsia exist. And photographic memory has never been proven to exist. But they aren't what pop culture advertises them as.
Hyperthemsia first. It is the ability of ...
- 304
3
votes
Accepted
Why do pupils dilate when someone says a lie? Other physicial symptoms when someone is lying?
The phenomenon you are describing of the pupils dilating when telling a lie has to do with the way the muscles around the eye are wired to the nervous system, and more specifically, the autonomic ...
- 1,618
2
votes
Accepted
Are cell phones still prohibited from the ER or other medical facilities? Why or why not?
Cairo University's Journal of Advanced Research (PDF) looks at all of the studies on ElectroMagnetic Interferene (EMI) from mobile cellular phones and medical equipment.
It says that based on the ...
- 6,164
2
votes
Does shaving causes the hair to grow faster?
No. Shaving your facial hair (i.e. beard) or any part of your body for that matter will not make it grow back faster.
There is nothing proven scientifically or otherwise that has claimed that when a ...
- 692
2
votes
Accepted
If evolution is effective, why do men still have nipples? In extreme situations, can fathers lactate?
Males secrete factors that block the development of female ducts and structures. Once the male embryo produces testosterone, the hormone can influence other sex-specific traits around the body. Men ...
- 1,888
2
votes
Why are cooked carrots not recommended during constipation?
Cooking in general decreases the insoluble dietary fiber contents and increases the soluble fraction. I guess this is the theoretical basis for the claim(s) regarding cooked carrots (and other cooked ...
- 5,968
2
votes
Does standing under the rain lead to fever? (Where the sole reason for the fever is rain)
This is a common misbelief in many parts of the world. In the English speaking parts we have a similar one about being outside in the cold after which some illnesses are called - you might have heard ...
- 3,101
1
vote
Does standing under the rain lead to fever? (Where the sole reason for the fever is rain)
TL;DR: no, standing under rain does not lead directly to being sick.
As this article says:
Contrary to popular belief, being out in the rain does not automatically make you sick. While the rain ...
1
vote
Evidence for temperature and humidity causing respiratory illnesses
You're right, evidence shows its viruses and bacteria that cause cold.
The question is, does cold temperatures contribute to increasing your chances of contracting a virus? The simple answer is yes, ...
- 302
1
vote
Does 'Stockholm Syndrome' really exist?
Stockholm Syndrome certainly does exist. It is a manifestation of capture-bonding, an evolutionary psychology[1] term for the evolved psychological mechanism[2] behind Stockholm syndrome. John Tooby (...
- 11
1
vote
Does shaving causes the hair to grow faster?
No, shaving does not cause hair to grow faster. People believe it is true for several reasons
Your hair might be just growing faster now because of puberty, which is when people usually start shaving
...
1
vote
Toxicity of carbon tetrachloride exaggerated?
Carbon tetrachloride (CCl4) is very toxic. It can cause both serious acute and chronic effects. The severity of effects depends on several factors such as:
dose
length of exposure
frequency of ...
- 2,833
1
vote
Is it true that alcohol is the only "drug" one can die from during a drug-withdrawal? What are the symptoms of the withdrawal?
American Addiction Centers
The symptoms are
Stage 1: Anxiety, insomnia, nausea, and abdominal pain characterize
this stage, which begins 8 hours after the last drink.
Stage 2: High blood pressure, ...
- 324
1
vote
If evolution is effective, why do men still have nipples? In extreme situations, can fathers lactate?
Evolution tends to select out traits that are harmful (in quite simple terms) AND expressed soon enough to negatively affect reproductive success. Nipples (and breast tissue) on males are extremely ...
- 107
1
vote
Accepted
Is the spit test for candida legitimate?
You're correct, your friend is indeed gullible.
Oropharyngeal candidiasis can be diagnosed by an experienced clinician by looking at the mouth to see characteristic plaques, or by taking swabs for ...
- 13.2k
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