For people who don't like fruits and vegetables, the old scars of the New year will crack again, including your acne marks.

We probably don't eat less meat during the Spring Festival, and we should eat more fruits and vegetables after the festival.

In addition to eliminating grease, fruits and vegetables have another unexpected benefit: to prevent old scars, such as pimples, from cracking.

All this is because fruits and vegetables are rich in vitamin C.

Most primary and middle school students know that vitamin C is a good medicine for scurvy, which is also caused by vitamin C deficiency, and vitamin C is mainly found in fresh vegetables and fruits, and many sailors died of scurvy during the great voyage.

But what on earth is scurvy?

In fact, one of the major symptoms of scurvy is the re-opening of the old wound, and the whole person begins to literally "fall apart": the old wound (such as the fracture healing area) will re-crack, the hair follicles bleed, the gums bleed and even become black.

This is because the body cannot synthesize collagen in the absence of vitamin C, which is the equivalent of human flesh glue, which binds tissues and cells together.

However, this human glue does not last forever, collagen gradually breaks down, and the collagen of scars breaks down and synthesizes faster than unhealed wounds, so old scars need to be constantly updated and maintained.

Under normal circumstances, the human body can supplement new collagen to replace the decomposed collagen.

But in the absence of vitamin C, there is an imbalance between the old and the new, and people break apart at this time.

The ancients have long known that healed scars will crack again when sailors travel for a long time without eating fresh fruits and vegetables.

In fact, the English scurvy of scurvy comes from the German schorbuk, and the word is used to describe a common phenomenon in sailors who sailed for a long time in the 15th and 18th centuries-chest and abdomen cracking.

For example, British Royal Navy Admiral George George Anson wrote in his voyage diary: "(scurvy) is a disease that makes the belly crack."

The old scars of many years ago will crack again. "

Anson is so aware of the symptoms of scurvy because he has witnessed the tragedies of a large number of teammates.

By the time he returned from a four-year voyage adventure (1744), there were only 188 men left behind his fleet of 1854, most of whom died of scurvy.

Why can't you eat fresh fruits and vegetables? the stomach will crack because there is a lot of collagen in the chest and abdomen bones-costal cartilage is made up of collagen.

No wonder the chest and abdomen become brittle when lack of vitamin C.

Of course, old wounds and soft ribs are only one aspect, and there are many places where the body needs collagen, such as blood vessels.

When a blood vessel ruptures due to a lack of collagen, the blood flows to the wrong place.

For example, after a blood vessel in the brain ruptures, the patient may have a stroke at any time.

And because vitamin C is involved in the synthesis of hair, the lack of vitamin C will also lose hair, or grow curly abnormal hair.

In addition, vitamin C can also bind to strong oxidizing free radicals.

If there is a lack of vitamin C, free radicals can damage neurons, causing communication problems between neurons.

So in the case of long-term lack of vitamin C, people will also have terrible hallucinations.

Thomas Willis, a researcher on the history of great navigation in the 17th century and an early member of the Royal Society, pointed out that many admirals suffering from scurvy wailed because imaginary food did not exist.

However, the causal relationship between vitamin C and the cracking of old scars was not confirmed by modern research until World War II.

During World War II, the British government conducted a vitamin C deprivation experiment called shipwreck (shipwreck) in order to determine the minimum vitamin C requirements when food was limited.

The study was later called the MRC experiment because it was led by the British Medical Research Council (MRC).

In fact, the World Health Organization (WHO) cited this study when it introduced the "old wound cracking" symptoms of scurvy.

The MRC experiment, which began in October 1944 and ended in February 1946, was conducted by 20 volunteers and led by the later Nobel laureate biologist Hans Adolf Krebs.

The participants' diet was emergency food without vitamin C in British naval lifeboats.

In addition to a regular diet, participants were divided into three groups. The first group received no vitamin C supplements, the second group received 10 mg of vitamin C supplements per day, and the third group received 70 mg of vitamin C supplements.

These people lived in this way for nine months without fresh fruits and vegetables.

The participants also had artificial scars to study the effects of vitamin C deficiency.

The researchers created wounds one centimeter wide and one centimeter deep on the participants' thighs to simulate being stabbed.

Others had a 3-centimeter wound on their thighs and stitched them up with three stitches.

Twenty-one days later, the researchers measured the force required to re-crack the wound as an indicator of the minimum daily vitamin C requirement.

In fact, the rupture of old scars has also become a signal for the end of MRC research.

The study found that for every 10 milligrams of vitamin C a day, the intensity of the scar increased by 1 Newton.

So the conclusion of this experiment is that the human body needs at least 10 milligrams of vitamin C a day; if the vitamin C intake is not enough, the wound will not heal.

The World Health Organization points out that difficulty in wound healing is "one of the early consequences" caused by vitamin C deficiency.

Of course, the participants returned to vitamin C after nine months of vitamin C deprivation, and their changes were also the subjects of the study.

In the process of re-supplementation of vitamin C, this classic study also found that it takes a long time to recover from vitamin C deprivation and that a large amount of vitamin C is needed during the recovery period.

Specifically, even with a daily intake of 90 mg of vitamin C (recommended by the World Health Organization) for six months, the mechanical strength of old scars of participants who had experienced complete deprivation did not return to normal.

In fact, there is a similar reaction in other animals that cannot synthesize vitamin C on their own.