Compared with cigarettes, which electronic cigarette is more harmful to human health?

Most people think that e-cigarettes are less harmful than cigarettes

• The main hazard of cigarettes is cigarette tar, there is no tar in electronic cigarettes;

• The nicotine content of cigarettes is basically fixed, and the nicotine concentration of electronic cigarettes can be adjusted;

• When cigarettes are burned, solid particles such as PM2.

  
  

• In contrast, electronic cigarettes are not more harmful than cigarettes

  
  

Therefore, electronic cigarettes have emerged as a substitute for cigarettes

However, the reality is more serious than this.

July 2019

The United States, where e-cigarettes are very popular, reported the first case of e-cigarette or e-cigarette use-related lung injury (EVALI), or "e-cigarette pneumonia" for short

2020 year

There is overlap between the e-cigarette pneumonia and the new crown pneumonia epidemic, and there have been differences of opinion for a period of time

Someone asked a question

After the outbreak of the new crown pneumonia, why is there no news of e-cigarette pneumonia? I think the most likely reason is that the new crown pneumonia epidemic has consumed too many medical resources

The World Health Organization calls smoking "the number one killer threatening human health", which shows that smoking is harmful, but almost all of these harms are long-term and chronic

So how harmful are e-cigarettes? Will it be more serious than pneumonia? It is difficult to say at present, after all, this matter has only been on the rise for more than a decade, and the short-term and long-term harm remains to be seen

Why does e-cigarette smoking cause severe pneumonia?

This must be related to the composition of e-cigarettes

There are many shapes of e-cigarettes, but the composition and structure are similar, including:

• Structural materials: cigarette holders, liquid plugs, atomizing rods, battery tubes, copper parts, chips, stickers, etc.

  
  

• Battery components: lithium battery, control board;

• Atomization device: resistance wire, tobacco wool, nickel mesh, glass fiber rope, ceramic seat;

• E-cigarette liquid: nicotine, solvents (glycerin, propylene glycol), flavors, pigments, some countries allow the addition of cannabis ingredients

  
  

• We might as well analyze one by one, what is harmful to the human body, and what kind of harm

  
  

• Structural materials: a variety of heavy metals can be precipitated;

• Battery components: may explode;

• Atomization device: a variety of heavy metals can be precipitated;

• E-cigarette liquid: It is the main source of e-cigarette harm

  
  

1.
Nicotine:

Compared with cigarettes, they are not much different
.
They can cause addiction, adverse cardiovascular reactions, affect fat and carbohydrate metabolism, neurotoxicity, and affect brain development
.
Although you can choose e-cigarettes with different nicotine concentrations, most e-cigarette smokers do not plan to quit smoking
.
Especially teenagers, they often smoke because of novelty and fun
.
Therefore, they may inhale excessive amounts of nicotine, which is faster than smoking
.
Addiction will worsen
.

2.
Glycerin (Propylene Glycol):

Exist as a solvent for nicotine
.
This is one of the ingredients of cosmetics and is generally considered safe, but this does not mean that it is safe to inhale aerosols into the skin
.
Even if it is applied to the skin, it may cause allergies
.
What if allergies are caused by lung inhalation? I immediately think of asthma and allergic pneumonia
.

3.
Spices and colors:

This determines the different flavors of electronic cigarettes
.
Usually, if you add spices and colorings to food, we will feel bad too
.

What happens if it is inhaled into the lungs?

So far, no e-cigarette manufacturer has proven that these things are safe to breathe into the lungs
.
A study analyzed 28 e-cigarette liquids and found a total of 141 volatile compounds, 12 of which contained menthol, which is banned in many countries
.
Studies have found that the carbonyl compound "2,3-butanedione" contained in e-cigarette aerosols can cause inflammation of the respiratory tract, and in severe cases, "popcorn lungs" can be formed
.

What is 3-butanedione?

It is a carrier of various tastes
.
At present, the use of e-cigarette flavors is very irregular
.
It may be the main cause of acute lung injury
.
Of course, it may also cause allergies
.
Long-term harm requires further observation
.

Cannabis ingredients:

In some countries, smoking marijuana is legal, so using marijuana to make electronic cigarettes is undoubtedly more addictive
.
Some studies believe that e-cigarette pneumonia is related to tetrahydrocannabinol and vitamin E acetate
.

5.
Harmful ingredients produced during heating:

When the electronic cigarette atomizer is working, heating the electro-hydraulic to 200-350°C will cause changes in the above-mentioned components
.
Some low-molecular-weight aldehydes and ketone compounds (formaldehyde, acetaldehyde, etc.
) have been detected in the aerosol of electronic cigarettes, which have a strong stimulating effect on the respiratory system and can cause cancer
.

Although e-cigarettes do not contain tar in cigarettes, they contain other harmful ingredients that can cause many diseases
.
Many reports show that the use of e-cigarettes can cause acute lung damage, such as diffuse alveolar hemorrhage, allergic pneumonia, tissue pneumonia and severe asthma
.

Generally speaking, smoking often causes chronic damage, usually after 20 years; smoking e-cigarettes usually causes acute damage, which may occur within a few weeks, or may cause chronic damage
.
So which one is more harmful? I believe readers have already made their own judgments
.

(Source: Internet, reference only)