9 votes
Accepted

How does removal of the gallbladder affect life expectancy?

This is very good and pragmatic question. I will answer no. First of all, there are no studies to date which would have investigated the life expectancy after cholecystectomy. Of course this ...
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  • 2,322
7 votes
Accepted

What are the long-term side effects of melatonin?

In long term studies, the effects have been mixed but mild. In hemodialysis patients, after about six months - melatonin no longer seemed to have physiologic effects but could still be detected at ...
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7 votes

Does BMR adjust and decrease in response to calorie restriction diets?

First of all, the 1000-2500 calorie statement from the answer to this question is not due to formula inaccuracies (only 0.5% of the variation were attributed to that), but is the actual measured BMR ...
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  • 781
5 votes

How long is zinc sun block effective?

Zinc oxide is an inorganic compound with the formula ZnO. ZnO is a white powder that is insoluble in water and is widely used as an additive in numerous materials and products including rubbers, ...
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  • 958
4 votes

How much hard liquor is safe for very small children?

As I argue in my answer to this question, there seems to be a threshold in terms of the amount of alcohol likely to cause hepatocellular necrosis based on the production of acetaldehyde. However, ...
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4 votes
Accepted

Does BMR adjust and decrease in response to calorie restriction diets?

Yes it can. As a general statement, I'm not sure how much it can go down before it's a problem, which is what I think you are asking as your second question. Starving to death might be seen as this ...
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  • 1,836
4 votes

What is the relationship between fluoride and IQ?

As the saying goes, anything is a poison, it's the dose that matters. Short summary, the new 2015 US PHS standard (0.7 mg/L) or even the old one (0.7-1.2 mg/L) are below the doses at which negative ...
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  • 5,773
4 votes

Any scientific evidence supporting positive effects from listening to binaural beats?

Is there any peer-reviewed scientific evidence supporting positive effects from listening to binaural beats? Yes, several. Here are two RSS feeds, which will continuously update, with research ...
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4 votes

How good, and for how long, can endorphins really make you feel?

There seems to be a misconception at the driving part of the question. Exercise has more effects (on the brain) than just stimulating a few synapses. That is indeed a vague and vastly incomplete ...
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  • 6,757
4 votes

Dangers of the OJ diet?

The diet consists of 24 oranges per day plus water. Nothing else. So let's see how much nutrition you're actually getting per day. Percentages are based on US Recommended Daily Intake for an adult. ...
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  • 9,324
4 votes

how long can H.Pylori last if not cured?

Yes, of course. Helycobacter Pylorii is a gram- bacteria which live is acid envronment, like stomach or duodenum. Common thoughts are that since stomach is acid, HP should die during time. This is ...
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  • 197
3 votes

What happens when you take a whole monthly dose of zinc just once per month?

That approach works with some supplements and not others. Iron, for example, will be held in the small intestine until the blood level lowers enough for safe absorption by which time it might just be ...
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  • 194
3 votes

How long is zinc sun block effective?

TL;DR: No, sunscreen needs to be re-applied every 2 hours Your product is the same as SPF 30 sunscreen SPF is a measure of how much solar energy (UV radiation) is required to produce sunburn on ...
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  • 6,480
3 votes
Accepted

Elderly Father Takes Prevacid for last 20 years, seems to do more harm, how to stop

First, we can't give advice specific to an individual on Health SE. See rules. BUT what I CAN do is help guide your next discussion with his doctor. (Those are great diagrams and will help your ...
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  • 5,693
3 votes

Is it safe to use magnesium hydroxide as an anti-perspirant?

While official government recommendations seem to indicate a very low risk: Toxicological Risks of Selected Flame-Retardant Chemicals. (National Research Council (US) Subcommittee on Flame-...
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  • 6,757
3 votes

Mistakenly took Atarax

Hydroxyzine Hydrochloride (Atarax, Ucerax) is a first-generation (sedative) antihistamine. Drugs of this type tend to have a pretty tame clinical profile, and it's unlikely you will experience any ...
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3 votes
Accepted

What is the relationship between fluoride and IQ?

There are over 300 studies have found that fluoride is a neurotoxin (a chemical that can damage the brain). According to EPA scientists (United States Environmental Protection Agency), there is ...
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  • 4,697
3 votes
Accepted

How do I determine a target time frame for breastfeeding?

The question implies that breastfeeding is an unpleasant and inconvenient thing that should be put up with as long as possible to give a baby "enough" benefit, at which time the box can be ticked and ...
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  • 3,744
2 votes

How do I determine a target time frame for breastfeeding?

The evidence for a specific timeframe beyond six months is inconclusive. Therefore: When to wean is a personal choice that has to look at the health of both: mother and child. "Individual infants must ...
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  • 6,757
2 votes

Long term usage of loperamide to treat IBS

Safety of Loperamide Loperamide (anti-diarrhoea medication such as Dioraleze or Imodium) is often the go-to treatment for diarrhoea. As the medication only acts on the digestive tract, there appears ...
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  • 5,852
2 votes

What are the pros and cons of various negative ion generators for health benefits?

Some negative ion generators also produce small amounts of ozone, which is a gas that can be lethal if inhaled in concentration. I suppose if you were to find a way to accumulate enough ozone and then ...
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  • 121
2 votes

How carcinogenic are neoprene coated dumbbells?

The chemical name for neoprene is polychloroprene and is a polymer of chloroprene. Chloroprene is suspected of causing cancer, but that does not mean that its polymer causes cancer. For instance, ...
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  • 1,360
2 votes

Meta analyses on vegetarian diet

Links: 2016 study 2014 study They are both meta analysis. Long term effects though.
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  • 131
2 votes

Albuterol risks for long-term use

Albuterol is a short-duration ß2-receptor agonist (to which it owes its main effect, bronchodilation); and while it can produce some effect on ß1-receptors (producing effects such as tachycardia), ...
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2 votes

Why not use epinephrine in heart failure?

Aadrenaline will generally quickly worsen heart failure because it massively increases peripheral vascular resistance and thus after-load on the heart. It significantly increases myocardial oxygen ...
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2 votes
Accepted

Basic Questions regarding Long-COVID from COVID Symptom Study app

You're looking at a non-peer-reviewed study with some sloppy conventions. There is not enough information contained in the paper to answer your questions about it. You can assume what you want for ...
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  • 11.7k
1 vote

Effects of not sleeping at night

Increased risk of disease. Heightened blood pressure. Weakened immune system and reduced effectiveness of certain vaccinations. Stress. Greater risk of death. Impaired creativity. Moodiness. Lower ...
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1 vote

how electromagnetic fields affect brain activity?

Transcranial Magnetic Stimulation (TMS) produces electrical currents in the brain through EM induction. It can do all sorts of temporary things to the brain including inducing hallucinations. See for ...
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