Questions tagged [physiology]

Human physiology is the science of the mechanical, physical, and biochemical functions of humans in good health, their organs, and the cells of which they are composed. The principal level of focus of physiology is at the level of organs and systems within systems.

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364 views

Does the Graston Technique effectively treat limited mobility due to scar tissue?

The Graston Technique is a form of "cross fiber" massage with a metal instrument. The Graston Technique® incorporates an evidence-based form of instrument-assisted soft tissue mobilization that ...
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4answers
2k views

How many days can you live without food? [duplicate]

I am a Malaysian. A few days ago, one of my country's political speakers claimed he didn't eat anything for 10 days, and he just survived by drinking water. This phenomenon really make me interested ...
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Do electromagnetic fields affect stress and the fight or flight response?

ArmoredSkeptic said on a recent video about ghosts that: EM fields actually trigger our fight or flight response Is that true?
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2answers
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Do the number of myofibrils increase with exercise?

According to this website, the number of myofibrils in a muscle can increase with exercise: Thus, the muscle cells’ myofibrils will increase in thickness and number. I had a look on google ...
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3answers
640 views

Do patients with spinal cord injury recover faster with positive attitudes?

Patients with incomplete spinal cord injuries experience quadriplegia and paraplegia. With therapy, some portion of the patients will recover the ability to walk, either aided or unaided. Yet some of ...
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0answers
89 views

Are there diseases that correlate with an “endocannabinoid deficiency”? [closed]

There was a study published in Neuro Endocrinology Letters by Dr. Ethan Russo in 2004 that says many diseases being treated with cannabis correlate with an “endocannabinoid deficiency”, but I cannot ...
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498 views

Does carrying or consuming onions help to prevent heatstroke and/or reduce your body temperature?

Will consuming onions help to reduce your body temperature, or prevent heatstroke? Some common variations of this claim include applying onion juice to your skin, or even just carrying an onion in ...
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0answers
286 views

Does orientation relative to the Earth's magnetic poles affect humans during sleep? [duplicate]

So generally in India they told you, you should not put your head to the north and sleep. [...] Suppose you are anemic and you go to your doctor what does your doctor prescribe for you? Iron. ...
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Can you power a smartwatch by your body heat? [closed]

I stumbled across this indiegogo page for a new kind of smartwatch. It promised to that you never have to charge it because it will be powered by your body heat. Now i'm wondering, can you really ...
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115 views

Does not wearing a coat when it's “cold” out make you sick? [duplicate]

I live in Maryland, where today it was about 50°F. I have heard this before, but my parents told me to wear my coat outside at school because the cold would "make me sick." Is it really true that ...
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Pedometers / fitness trackers and setting stride length from your height - how accurate? [closed]

Looking at a couple of pedometer instruction leaflets, from different manufacturers, and spotted that they both suggest you can approximate your stride length from your height via the following ...
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0answers
850 views

Does drinking beer help to cure a hangover? [closed]

It's been a long-known saying that drinking beer cures hangover. It is said that a hangover is your body craving for alcohol, so drinking a beer helps the body. Is it true?
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Do out of sync propellors make passengers more likely to be airsick?

In a multi-engine propellor-driven aircraft, propellor synchronization occurs when the two propellors are turning at the same RPM. Propellor synchronization eliminates beating. The purpose is for ...
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1answer
549 views

Do male human brains have better global efficiency than female human brains and female brains have better local efficiency in the right hemisphere?

Wikipedia writes in Lateralization of brain function: Significant differences between male and female hemispheric rivalry and dominance have been established. Male brains have significantly better ...
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0answers
411 views

Are two layers better at insulating body heat than one double-thickness layer? [closed]

It is almost universally recommended that wearing multiple layers of clothing is the most effective way to stay warm in cold weather, compared to one thicker layer, although there seems to be little ...
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239 views

Did György Sherfezi fall from the 10th floor on a passing Laszlo Karvasha and both survived?

Some researchers of Coincidence insist on the veracity of the story: "A resident of Budapest György Sherfezi fell out of the 10th floor window and landed on a passing Laszlo Karvasha. Exactly one ...
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57 views

Can Methylsulfonylmethane make human hair grow faster? [duplicate]

There is this other question: Is sulfur a "miracle cure"? But it received zero answers at the time of this posting, so it is not a valid duplicate target. The claim therein also is too broad....
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33 views

Does alcohol make you warmer? [duplicate]

A lot of people seem to think that they can walk around in t-shirts in midwinter after having a few drinks, and people often feel warmer after drinking alcoholic drinks. However, are they actually ...
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Do sports drinks such as Powerade and Gatorade help prevent or shorten hangovers? [duplicate]

Does drinking Powerade or Gatorade before, during or after consuming alcohol help prevent or eliminate hangovers? According to this article a pilot study was done that found nothing can help hangovers ...
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0answers
227 views

Will stretching help me have lean, shapely muscles? [duplicate]

I read that after exercising, we should stretch our muscles so that they won't be bulky but instead be long and lean. Is this true? Edit: The question is more about aesthetics than whether stretching ...
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53 views

Alcohol good or bad? [duplicate]

I see moderate alcohol shows (supposed) benefits for health and long life. I am 42 and experienced a mid life crisis 4 months ago (initially a nervous breakdown). I am slowly getting better but stil ...
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0answers
50 views

Do changes in weather make people more likely to get sick? [duplicate]

Possible Duplicate: Is time of the year a factor on the risk of catching a common cold? I've heard this from my father and I feel like I've experienced it personally, but I can't tell whether or ...
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0answers
660 views

Does your heart skip a beat when you sneeze? [duplicate]

Possible Duplicate: Does your heart stop beating when you sneeze? In this answer to the question Does your heart stop beating when you sneeze? it is stated that your heart can skip a beat ...
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0answers
132 views

Are people still concious after beheading? [duplicate]

Possible Duplicate: Does one remain conscious after decapitation? Is it true that after you are beheaded, you are still concious for a few seconds, and you can see everything around?
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0answers
251 views

Is homosexuality genetic or can it be unlearned in one of those (christian) camps [duplicate]

Possible Duplicate: Is homosexuality innate? I suppose I was trying to be tad too PC earlier. I've seen quite a few anti-gay person saying that homosexuality is something that is learned and can ...
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1answer
587 views

Were humans placed on Earth by aliens?

This 2013 Daily Mail article quotes the claims of the book Humans are not from Earth: a scientific evaluation of the evidence by Dr Ellis Silver. A U.S. ecologist has claimed that humans are not ...
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140 views

Does handling your food release digestive juices and enzymes that enhances the meal?

In a Google Arts & Culture article, Yẹ́misí Aríbisálà, "Nigerian essayist, writer and food memoirist", states the following: There are scientific claims that fingers have powerful nerve ...
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99 views

Was this video about a person who can withstand electricity staged? [duplicate]

This video, which is apparently by History.com Channel, shows a man called "Electric Mohan" from Kerala, India who doesn't get harmed when electricity flows through him. Is it possible for any human ...
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Different Human species? [closed]

Are humans only one species or Africans, Asians, Europeans, Mongolians etc are different species? They differ drastically in appearance.