Completely false thoughts about eating, sleeping, resting (part 2)

Taking vitamins helps you stay healthy, or microwave causes cancer and everyone should drink 8 glasses of water a day . All of these are misconceptions.

Summary from the TechInsider page below shows that there are many things that are contrary to our thinking for a long time.

The hymen is a tissue that blocks the female vagina

Wrong . The hymen is a thin membrane that only blocks part of the vagina. Many activities can stretch or tear the hymen, including exercising or using tampon (a sanitary pad), not just having sex.

Eat lots of carrots to help brighten your eyes

Eating lots of carrots does not make our eyes "as pure as cat eyes".

Vitamin A is the main nutritional ingredient in carrots, and it is good for the eyes - especially for those with poor eyes. But eating lots of these vegetables doesn't give you a "cat-like" vision, can see through the night.

Pregnancy makes women silly

Studies on this issue yielded mixed results. Some studies of changes in women's memory during pregnancy show that there is little effect on the brain, although other studies do not see any negative effects.

However, according to research in mice, there is much evidence that pregnancy makes women more orderly and smarter.

Even so, pregnant women and new moms have a lot to worry about and think about - so maybe their brains become more developed.

People cannot develop new brain cells

You cannot give birth to all your brain cells for the rest of your life. There is much evidence that the brain continues to produce new cells as we enter adulthood, through a process called neurogenesis.

If you forget to swallow chewing gum, it will take 7 years to digest it

When you swallow the gum, it will pass through the intestine and go out with another path.

Incorrect. Gum is almost impossible to digest, but sometimes this tiny piece of candy slips into your abdomen, it will pass through the intestine and go out on another path, like anything you eat but your body No need and no digestion.

Difficulties swallowing gum are when the candy is swallowed along with other dangerous things. American scientists have cited a case of a 4-year-old girl with gastrointestinal obstruction because she swallowed gum with 4 coins.

Microwave causes cancer

Microwave radiation does not cause cancer, it only helps to heat food. Only a few types of radiation cause cancer, and they depend on the dose. For example, radiation from the sun can cause skin cancer, but just enough for your body to have Vitamin D.

The microwave oven did not break the heart rate. However, things like anti-theft systems, metal detectors, fridge magnets, cell phones, and even headphones can mess up devices that keep the heart rate.

After eating, you have to rest for 1 hour before swimming or you will get cramps and drown

The theory behind this thought is that the digested food will draw a lot of blood into the stomach, meaning that the muscles will have less blood supply, causing muscle cramps.

However, there is no evidence to support this. In fact, many sources say that there have been no cases of death because of cramps after swimming.

Cramps often occur while swimming, but the cause is not in the stomach. If you have cramps, it is best to keep your body afloat for 1 minute and wait for the cramps to pass.

Taking vitamins helps you stay healthy

In some cases, vitamins are actually associated with an increased risk of different types of cancer.

Vitamins seem to be a good idea, a vitamin can provide everything you need to be healthy. But only if it works.

Decades of vitamin research have not found any excuse for our multivitamins, and in some cases, true vitamins are also associated with an increased risk of cancer. Different letters.

Everyone should drink 8 glasses of water every day

It is not true to drink enough 8 glasses of water every day.

Water is important, but drinking 8 glasses of water a day is another matter. For healthy people, researchers do not find any link between drinking water and kidney, heart disease, sodium levels or skin quality.

But water is a non-calorie drink alternative to other drinks (especially sugary drinks like soda or soft drinks), and people drink water instead of these drinks that also consume less calories. than.

The best rule is to drink when you are thirsty - not to count 8 cups.

Yogurt helps to digest well

Not yogurt is not good for health, only its effect has been over-worked.

Yogurt is often advertised for good digestion and provides a slender body thanks to probiotics - that is, "good bacteria" that live in yogurt will bring about such amazing results.

Bacteria are closely related to our metabolism and obesity rate, of course there are many other related factors. So thinking above seems logical.

But we don't understand how millions of bacteria in our bodies work together when we eat yogurt.

This is not to say yogurt is not good for health, only its effect has been overcharged. Remember, many yogurt contains sugar, causing obesity and other problems. So, if you like yogurt, look for one that doesn't contain too much calories.

Should eat something before drinking alcohol

Eating before drinking beer, alcohol helps the body absorb alcohol, but it only delays alcohol from entering the bloodstream in the body, but is not limited.

The body absorbs alcohol more slowly after you eat, so eating before drinking can help reduce discomfort from alcohol. But eating after drinking will not help much for this unpleasant symptom.

Remember everything after being drunk

If you wake up and don't remember anything about the previous night, you may not need to remember, because that is impossible. When we drink too much, the memory part of the brain is actually "turned off".

People say that they remember what happens after being drunk, which may be just a phenomenon called fake memory.

Brown sugar is better than white sugar

In fact, brown sugar is white sugar, which is completely free of honey.

Brown sugar does not mean it is "more natural" or better than white sugar. The color comes from the syrup called honey.

Brown sugar contains a small amount of honey. In fact, brown sugar is mostly white sugar containing honey. Although bile contains some vitamins and minerals like potassium and magnesium, it is not enough to make you healthier. So brown sugar and white sugar are the same.

Sitting too close to the TV is not good for the eyes

Sitting too close to the TV only makes you headache because of eye strain. But this is only true for older TVs, producing some X-rays, and new types of TVs.

Vaccine causes autism

This is wrong. Numerous studies that have analyzed data from more than 1 million children have shown no association between vaccines and autism.

Sugar causes diabetes

Moderate sugar consumption will not make you diabetic. The American Diabetes Association, though advising people to avoid soft drinks and soda, still points out that diabetes is a complex disease, and there is not enough evidence to say that eating sugar is a direct cause of diabetes.

However, gaining weight and drinking sugary drinks all cause a high risk of diabetes.

Children who drink fresh water increase their risk of obesity

In "Fed Up", a documentary about the obesity epidemic in the US, there is a frightening statistic: "Drinking 1 cup of soda a day increases the risk of childhood obesity by 60%".

The authors studied this data and noted that their findings "could not prove the truth". Drinking too much soda may be bad, but that's not the only cause of childhood obesity.

Scientists advise parents to do what they can to protect them from obesity, such as encouraging a healthy lifestyle, eating and exercising moderately, both of which help a child's waistline. slim, not just trying to reduce the type of soda water.

Breaking the knuckles will make you joint

Fortunately, people who break their knuckles do not have the same risk of arthritis as we thought.

Fortunately, this is not true. The habit of breaking the knuckles can make people around them uncomfortable, but even those who often break their hands for years don't have a greater chance of getting joints.

When you have a cold, do not eat or drink anything

A big but misleading study in 2002 blew up this thought, but actually limiting the intake and intake of calories can make your immune system hurt, not help it - certainly will be a bad idea when you don't eat anything for 6-8 days with a cold.

Instead, doctors say keep eating if you can eat, and remember to drink plenty of water.

The green nose is exposed to a bacterial infection, while the yellow nose is a virus

The color of the nasal fluid cannot be a sign that your body is infected with bacteria or viruses. Green or yellow nasal fluids only show signs of different diseases and levels of infection.

But whatever your nasal color is, if you don't feel well, see your doctor.

Stress will cause you to have high blood pressure

Stress is not the cause of chronic high blood pressure. Severe stress may temporarily increase blood pressure, but is generally not the main cause of hypertension. Reasons such as genetics, smoking and bad eating habits are the bigger factors that lead to hypertension.

Having warts is because . toads

The toad does not prevent you from getting warts, but shaking hands with someone who has warts can make you have warts.

Warts are a disease found only in humans, not in toads.