Can eating black sesame pills prevent hair loss?

Eating black sesame pills can "raise blackness with blackness", is it an "artifact" to prevent falling off? Can children grow taller by smelling lemons? The February Science Myths List was released on February 28 to answer these questions

The monthly scientific rumor list is guided by the Beijing Municipal Association for Science and Technology, the Beijing Municipal Party Committee Network Information Office, and the Capital Internet Association

1.

【gossip】

In order to ensure the quality of ice and snow on the field, the colder the weather during the Winter Olympics, the better

【the truth】

Low temperature will not only bring physical coldness, but also have practical effects on the performance and safety of the competition, athletes' competition equipment and venue facilities

For example, in sleds, sleds, and steel sleds, the ideal weather is a sunny day at or below 0°C

Ski jumping is recognized as one of the most weather-sensitive competitions, and it is not suitable for competitions when the temperature is lower than -20°C or higher than 0°C

If the temperature is too high, it may cause no snow on the field, and if the temperature is too high, snow cannot be made

2.

【gossip】

In the field of xenotransplantation, primates, the closest relatives of humans, are the most suitable organ donors

【the truth】

The use of primates as organ donors faces many technical and ethical issues

Unlike primates, pigs have organs similar in size to humans, and have the advantages of lower risk of infectious diseases and relatively more abundant numbers

3.

【gossip】

Dry eye syndrome is "the lack of water in the eyes", so frequent eye drops will do

【the truth】

If you have dry eye symptoms, you must go to a regular hospital for treatment.

Dry eye syndrome is the ocular surface damage and discomfort caused by the imbalance of tear film homeostasis.

The moisture of the cornea depends on the tear film, and the outermost layer of the tear film is covered with a layer of "oil" secreted by the meibomian glands to prevent the water from evaporating too quickly.
This layer of oil is meibum
.
If the glands cannot secrete oil, it will cause dry eye due to Meibomian gland dysfunction
.
More than 80% of dry eye patients are associated with Meibomian gland dysfunction
.

For the "oil-deficient" type of dry eye, blindly using eye drops for "hydration" is not only ineffective, but may also aggravate the condition by destroying the lipid layer
.
At the same time, preservatives and other chemicals in eye drops can also damage the cornea and conjunctiva cells on the ocular surface
.
At present, the traditional treatment method in regular hospitals is to relieve the uncomfortable symptoms of dry eye through hot fumigation, meibomian gland massage, eyelid margin cleaning, and artificial tears
.

4.
Can taking black sesame pills prevent hair loss?

【gossip】

Net red black sesame pills can "raise black with black" and save the hairline
.

【the truth】

The black of black sesame comes from a flavonoid, but the amino acid derivatives composed of melanocytes in the human body are not the same as the pigment in black sesame, so even eating black sesame will not help the body to produce melanin and reduce white hair.

.

In theory, vitamin B2 in black sesame seeds can prevent seborrheic dermatitis, but to meet the daily requirement of 1.
2 mg of vitamin B2 for adult women, you need to eat more than 500 grams, and men need more
.
It is definitely not recommended by merchants and Internet celebrities.
Just eating a little can achieve the desired effect
.
If you eat too much black sesame pills, it may also increase the secretion of oil, cause itching of the scalp, erythema, etc.
, and cause the burden of weight and blood lipids
.

5.
Are figure skaters naturally dizzy?

【gossip】

The average figure skater spins nearly 100 laps per game.
It is a talent for them to "turn" so much.
Ordinary people get dizzy after turning two laps
.

【the truth】

The reason figure skaters don't get dizzy is because they train non-stop, and it's not that they aren't born dizzy
.

The vestibular system in people's ears is the perceptual system responsible for the body's own sense of balance and space, and it is also an important structural basis to ensure people's ability to maintain coordination and balance in complex movements
.
Through long-term training, the vestibular system has gradually become accustomed to the spatial change of the head, and the natural response of the human body has been overcome
.

6.
Are self-brewed and pure-grain wines healthier?

【gossip】

The wine brewed from pure grains is the essence of grains, and the wines brewed from self-brewed and pure grains are healthier
.

【the truth】

The health effects of alcohol come from the alcohol and other fusel alcohols in it
.
In fact, whether it is "pure grain brewing" or "edible alcohol blending", the alcohol in it is obtained through grain fermentation
.
As long as it is alcohol, it is equally harmful to health
.

In addition, the "self-brewing" and "home-brewing" that many people admire, the fermentation process is not well controlled, and there is often no standardized distillation operation in the follow-up, so the fusel alcohol content is usually higher
.
Some fusel alcohols have greater health effects than alcohol
.

7.
Are magnetic storms extremely damaging to satellites?

【gossip】

A magnetic storm caused problems with 40 "Starlink" satellites, indicating that the magnetic storm has a very high lethality to satellites
.

【the truth】

The impact of magnetic storms on satellites is mainly related to the design ideas and orbital positions of satellites, and cannot be generalized
.

When a solar flare erupts, a strong solar wind may appear, which may not only damage the satellite directly, but also cause a large-scale disturbance of the magnetic field near the earth, that is, a "magnetic storm"
.
Since the 18th century, sunspot activity has basically been in an 11-year cycle, generating tens of thousands of magnetic storms in each cycle
.
In most cases, at most, the communication of the satellite in orbit is temporarily affected, and it will not crash
.

Why did the "Starlink" satellite suffer heavy losses in the magnetic storm? Because the "Starlink" project belongs to commercial satellites, in order to save costs, some new technologies that are not very mature will be used.
In the harsh space environment, the reliability of these satellites is not as high as that of traditional satellites.
Once a magnetic storm occurs, they are often more reliable.
prone to failure
.

On the other hand, when a magnetic storm erupts, it often causes a large number of charged particles to be injected into the atmosphere, heating the atmosphere.
The upper atmosphere is originally very thin, but after the magnetic storm heats it up and increases its density, the air resistance suddenly increases
.
At this time, if the satellite cannot turn on the engine in time to raise the orbit, it will be like falling into a "quagmire"
.
The Starlink satellites were just released in low orbit.
After these satellites entered the safe mode due to the magnetic storm, they failed to exit in time and turn on the engine to adjust the orbit.
This is the main reason for their batch damage
.

8.
Putting lemons on the bedside of children can help them grow taller?

【gossip】

Lemons produce a special aroma that helps children sleep better
.

【the truth】

The claim that lemons help children grow taller has no scientific basis
.
Whether a child can grow taller is not only affected by genetics, but also related to three factors: sleep, nutrition and exercise
.

Sleep does play an important role in height growth and intellectual development
.
However, most children do not have difficulty falling asleep.
If there is, it is unrealistic to try to accelerate sleep by smelling lemon, because lemon has no sleep aid effect, and not everyone likes the smell of lemon
.

9.
Can tableware be sterilized by scalding with boiling water?

【gossip】

Before going out to dinner parties, remember to scald the tableware and chopsticks with boiling water first, so that it can be disinfected and sterilized, and you can use it with confidence
.

【the truth】

Boil the bowl with boiling water before eating.
Due to the insufficient heating temperature and time, it cannot guarantee to kill most pathogenic microorganisms
.

To achieve the desired effect of high-temperature disinfection, two conditions must be met at the same time: one is temperature and the other is time
.
For example, it takes 5-10 minutes for hot water at 80°C and 2-5 minutes for boiling water to kill common bacterial propagules such as pathogenic Escherichia coli, Bacillus typhi, and Vibrio cholera that can cause diarrhea
.

Compared with scalding bowls with boiling water, what people need to do more is to use public chopsticks and spoons, divide meals, or use packaged sterilized tableware
.
As long as the tableware has undergone a strict disinfection and sterilization process, it can be used with confidence
.