Health Stack Exchange
Health Stack Exchange

Most Popular

more tags
1500 questions
10
votes
0 answers

How surgeries are performed on military and hospital ships?

I am intersted in papers or reports on how the operations are conducted in the presence of permanent pitching. Is it even possible to perform, for example, heart transplant in such conditions? What operations are known to be possible to perform? How…
FrogOfJuly
  • 201
  • 3
10
votes
1 answer

How are BMI ranges established?

The ideal BMI is often quoted as being 18.5 to 24.9, and obesity is often defined as a BMI over 30. Were these ranges constructed based off established science connecting these numbers to health, or are the ranges arbitrary? If they are based off…
Kenshin
  • 1,700
  • 1
  • 11
  • 28
10
votes
1 answer

Do light boxes effectively mimic the effects of natural sunlight to produce vitamin D?

Since moving to Seattle a few years ago, I'm wondering if I get vitamin D deficiency during the dark rainy months of the year. There are available light boxes that are used for treated seasonal affective disorder. I’m wondering if these are also…
Dan B
  • 277
  • 1
  • 7
10
votes
1 answer

Can flying while an eardrum perforation due to barotrauma is healing cause further damage?

I was recently (around 6 weeks ago) on a short return flight from France. During the descent, my left eardrum ruptured when the cabin pressure equalised (which was noticed by a nurse directly afterwards at the airport, and later confirmed by a…
Amelia
  • 203
  • 1
  • 7
10
votes
2 answers

Collagen: An interesting food supplement or an unnecessary one?

It's becoming quite usual that people older than ¿30-40? years old complement their diet with collagen for bones and specially articulations-related issues. I know some of them which use it as a preventive method. My doubt arises when thinking that…
Alberto Martín
  • 203
  • 1
  • 6
10
votes
2 answers

Are Covid-19 vaccines much more deadly than people (and scientists) think?

The other day I read this chart on an Italian newspaper article I looked for the source, and I found only this tweet: https://twitter.com/Drs4CovidEthics/status/1432193260949172230 from Doctors for Covid Ethics. Stats are from Openvaers. Anyway.…
Toc
  • 227
  • 1
  • 2
  • 7
10
votes
2 answers

Why is the new mRNA vaccine unable to modify human DNA?

One of the most common worries expressed against the new coronavirus vaccine is that, supposedly, injecting mRNA into a cell has the potential to alter the human genome. I am constantly bombarded by my family with links to conspiracy theory and…
gaazkam
  • 793
  • 3
  • 8
10
votes
1 answer

Is there a reason to be anxious about claim that COVID-19 vaccine could turn out to be inducing infertility in females?

There is a petition written on December 1, 2020 to European Medicines Agency (EMA) by Dr. med. Wolfgang Wodarg and Dr. Michael Yeadon. You can see it here. Both of them are well known for spreading misinformation about COVID-19. Yeadon used to work…
Learner
  • 219
  • 1
  • 5
10
votes
1 answer

Can the specificity of a COVID-19 antibody test be improved by testing twice?

My question is fairly simple: There is a COVID-19 antibody test with a worst-case specificity of 98%, meaning that it yields potentially up to 2% false positives. While that number is not bad it is problematic when the expected true positive rate is…
Peter - Reinstate Monica
  • 173
  • 1
  • 11
10
votes
3 answers

E-cigarette. Making liquid vs. buying liquid

I see more and more e-cigarette users around me making their own liquid instead of buying industrial products already assembled. They use exactly the same components (glycerin, propylene glycol, flavour, and optionally nicotine) as the industry, and…
Shlublu
  • 2,260
  • 2
  • 19
  • 37
10
votes
2 answers

Why is there is no screening for Ovarian Cancer?

From what I have read it is not considered effective to screen for ovarian cancer in non-symptomatic women. Would it not be worth doing an ultra-sound scan, then if there are growths found, do a ROMA test?
Richard
  • 133
  • 6
10
votes
2 answers

Why is some alcohol consumption healthier than no alcohol consumption?

All the time I see content online that says moderate alcohol consumption is good for you. Some even say it is better than no alcohol consumption. Other times there is conflicting information that says no alcohol consumption is better. I'm assuming…
BoddTaxter
10
votes
2 answers

Is there any efficient treatment of Tinnitus (Ear ringing)?

I suffer from the permanent ear ringing called Tinnitus. I just started giving up as I visited many doctors, but unfortunately, without any remarkable recovery. Most of the doctors I've visited suggested ear wax removal drugs. After many googling…
user1232
10
votes
1 answer

Why I should avoid exercising after blood donation?

I'm a quite experienced blood donor, even if I feel anxious during the blood extraction I've never felt dizzy nor tired after donation. Today, I've been donating and the nurse told me to avoid weight lifting and any kind of exercise for the next…
Paula_plus_plus
  • 235
  • 2
  • 7
10
votes
1 answer

Is it ineffective to drink cold water to cool down when you are warm?

I have heard many times that drinking cold water when you are warm is not an effective way to cool down. The most common supposed reason that I have heard is that the body needs to spend a considerable amount of energy to warm up the water because…
klutt
  • 201
  • 1
  • 5
1 2 3
…
99 100