Thursday, August 28, 2025

Polaris of Enlightenment

Intermittent fasting increases energy – may slow aging

Published 26 August 2024
– By Editorial Staff
4 minute read

Intermittent fasting may have several health benefits, including lowering blood pressure, delaying aging, and even being beneficial in cancer treatment. Fasting has also been shown to increase mental focus and improve sleep.

There are several different forms of intermittent fasting, including the 5:2 method and the 16:8 method.

Intermittent fasting is a dietary practice that alternates between periods of fasting and eating. The health purpose of fasting is to allow the body to rest and recover. The body, which uses the salivary glands, liver, gallbladder, and pancreas during digestion, gets the necessary rest and time to repair cell damage during a period of fasting. Like other systems in the body, the digestive system needs rest to function optimally.

One way to do intermittent fasting is called the 16:8 method, which involves eating as usual for 8 hours and fasting for the remaining 16 hours of the day. It is common to eat dinner around 6 or 7 pm and eat again at 10 or 11 am the next day. It is said that you should be able to spend these hours as you wish, but some say that you should not eat after 6 pm for the best effect. A similar but “kinder” approach is to use an equivalent 14:10 method instead. There are also “upgrades” to 18:6 for those who want to fast longer.

Another common method is 5:2, where you eat as usual for five days and “half fast” for two days. On the half-fast days, you eat about 500-600 calories of nutritious food. It is also possible to do a more gentle 6:1.

Health benefits

According to Kerstin Brismar, Professor of Diabetes Research at Karolinska Institutet, regular intermittent fasting can have a number of positive health effects, including on blood pressure, blood lipids and gut flora.

– People who fast often find that they are more alert, happier and sleep better, she told the magazine Må Bra.

A 2015 animal study showed that intermittent fasting changed the gut flora, to the great benefit of good bacteria. Another study published in 2019 showed that intermittent fasting can lead to significant improvements in liver steatosis, especially in people with type 2 diabetes. The results suggest that both people with and without diabetes experience a reduction in liver fat and body weight with this type of fasting.

Intermittent fasting is often promoted as a good way to lose weight, but a 2021 study suggests that this may not be true. The study tested three groups, one using intermittent fasting, one using a traditional diet, and one using only partial fasting. The intermittent fasting group lost almost no weight over three weeks, while those on a traditional diet lost 1.9 kilograms

However, you can still lose weight with intermittent fasting, for the simple reason that you often don’t eat as much as when you’re not fasting. Fasting can also reduce appetite, which in itself can also lead to weight loss.

– Counterintuitively, fasting has been shown to decrease the hunger hormone ghrelin, nutritionist Whitney English told Livestrong.

The reason why fasting can make you feel more alert and energetic may be because the body enters a metabolic state called ketosis, which means it switches from using glucose to using ketones instead.

– Researchers call this ‘intermittent metabolic switching’ and believe that it adapted to help humans remain in a state of optimal functioning in order to hunt and gather food during periods of hunger, Whitney English explains.

Fasting is also thought to improve insulin sensitivity, which may protect against diabetes. It may also help lower blood sugar, improve blood lipids, and lower blood pressure, according to Livestrong.

Fasting is supposed to be good for the heart and lower blood pressure. Photo: Mara Ket/Unsplash

Slowing the aging process

Professor Valter Longo of the University of Southern California has spent more than 15 years researching fasting and its health effects, and has concluded that restricting calories through fasting can prolong life. In one of his studies, participants completed three rounds of five-day fasts, interspersed with a low-sugar, low-protein diet. The results showed that the biological age of the participants decreased by an average of 2.5 years.

– We clearly see in our laboratory studies that organs and cells shrink and then rebuild. The body turns on the stem cells and starts to rebuild, said Valter Longo in the SVT program Vetenskapens värld in 2022.

Longo has also done some research on cancer and believes that fasting can help in cancer treatment. Back in 2012, he showed that fasting together with chemotherapy can shrink tumors more than chemotherapy alone, because fasting prevents cancer cells from getting the nutrients they need to grow. However, fasting can also cause nutritional deficiencies in patients, so a fasting-like diet has been developed that deprives cancer cells of the nutrients they need while still providing important immune system cells with what they need. In later trials, in 2016, this fasting-like diet was tested together with chemotherapy in cancer patients and found to work, according to an article from forskning.se. On his website, Lango describes the diet and other research he has done.

How to start intermittent fasting

If you want to start some form of intermittent fasting, it can be good to start slowly and gradually, for example, fast for twelve hours and see how it feels, then gradually increase to longer periods. Then you can test the waters and see what type of intermittent fasting works best for you. Some may want to alternate between 5:2 and 16:8, while others may only want to use the 14:10 method.

It is also important to eat good, nutritious food during the eating periods. Make sure you get enough protein, fiber, fats, vitamins, and minerals. Remember to drink plenty of water, especially during fasting periods..

During these fasting periods, it is okay to drink coffee and tea as well as water.

Be sure to listen to your body. If you feel nauseous or dizzy, you may want to break your fast.

Fasting should always be avoided if you are pregnant, underweight, under the age of 18, or have an eating disorder. If you are taking any medications, you should also ask your doctor if intermittent fasting is okay for you.

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Memory problems increase among Nordic children

Published yesterday 7:26
– By Editorial Staff
Memory-related medical visits have tripled in a short time among children aged 5-14 in Sweden.
2 minute read

More children and young people are seeking medical care for memory problems in both Sweden and Norway. The Swedish Radiation Protection Foundation believes the increase may be linked to radiation exposure, which has also increased during the same period.

In Norway, there has been an increase in recent years in the number of people seeking medical care for memory problems, not only among adults but also among children. Between 2019 and 2024, for example, the number of doctor visits related to memory problems more than doubled, from 41,722 doctor visits to 98,910 doctor visits in 2024. Among children aged 5-14, visits had nearly tripled.

I have never seen such a dramatic increase in these figures before, says Richard Aubrey White, researcher and statistician at the Norwegian Institute of Public Health (FHI), to Norwegian state broadcaster NRK.

In Sweden too, the number of doctor visits regarding memory problems has increased, both among children and adults. Memory problems, which can be classified as mild cognitive impairment, is a diagnosis found under diagnostic code R41. In 2011, 577 children were registered with diagnosis R41 as the primary diagnosis; by 2024, the number had increased to 5,975.

Microwave radiation

The Swedish Radiation Protection Foundation believes the increase may be due to increased exposure to microwave radiation among people, pointing out that repeated research has shown, for example, that radiation has a harmful effect on memory.

Repeated scientific studies have also shown that people exposed to elevated levels of this radiation have an increased occurrence of various symptoms, called microwave syndrome, where impaired memory is one of the most common symptoms“, writes the Swedish Radiation Protection Foundation.

Cell towers associated with worse memory

Even in case studies examining the health effects of 5G, impaired memory tends to be one of the most commonly reported effects. Reports of impaired memory, concentration difficulties, and headaches are also common when living near cell towers.

The Swedish Radiation Protection Foundation notes that radiation has increased dramatically during the same period as the increase in doctor visits for memory problems has occurred. At the same time, mobile phones have begun to be used more extensively by both children and adults during the same period.

The increased memory problems, both among children and adults, are thus an expected effect resulting from the increase in people’s exposure to microwave radiation”.

Colorectal cancer affects more young Swedes

Published 23 August 2025
– By Editorial Staff
The study also shows that mortality has increased among both younger and older patients for up to ten years after cancer diagnosis.
2 minute read

Colorectal cancer is increasing among young people in Sweden, according to research from the Karolinska Institute. Researchers suggest that lifestyle factors, such as sedentary behavior and obesity, may be the cause.

In the study, which was published in Annals of Oncology, researchers examined over 135,000 Swedish patients who had colorectal cancer between 1993 and 2019.

The results show that the number of younger people under 50 who develop this form of cancer has increased over the past three decades. For rectal cancer, the number of new cases among younger people has increased by 2.04 percent per year, and for left-sided and right-sided colon cancer, the increase is 2.41 and 2.64 percent per year respectively. Overall, the disease has become two to three times more common among younger people.

Detected later in younger patients

Younger patients also more often had metastatic cancer compared to older patients, suggesting they had lived with symptoms longer before the cancer was discovered. Researchers emphasize that it’s important for both the public and healthcare professionals to know that this type of cancer can also affect younger people. This is particularly important since the chance of curing cancer increases with early detection.

The study also shows that mortality has increased among both younger and older patients up to ten years after cancer diagnosis.

This is remarkable, since patients are often considered cured after such a long time. Our results challenge that view and underscore the need for more research into why this is happening, as well as long-term follow-up and support for both young and older patients, says Cecilia Radkiewicz, researcher at the Department of Molecular Medicine and Surgery at the Karolinska Institute in Stockholm.

Lifestyle may be the cause

It’s unclear what actually lies behind the increase in colorectal cancer among young people, but researchers believe it doesn’t appear to be driven by traditional risk factors such as inflammatory bowel disease or heredity. Instead, the results suggest that lifestyle factors may be decisive.

Childhood obesity, sedentary lifestyle, and antibiotic use have been highlighted as contributing factors, although the underlying biological mechanisms remain unclear, says Radkiewicz.

Just a few puffs are enough – how quickly vaping damages the lungs

Published 21 August 2025
– By Editorial Staff
Researchers have for the first time been able to demonstrate a direct link between inhaled nicotine from e-cigarettes and inflammatory markers in the blood.
2 minute read

Just a few puffs of an e-cigarette, or vape, containing nicotine can trigger inflammation in the lungs, according to research from Uppsala University in Sweden.

The researchers, who received funding from the Swedish Heart-Lung Foundation, tested 22 healthy individuals on two different occasions. The participants then smoked e-cigarettes both with and without nicotine for half an hour each.

When the researchers analyzed the blood samples, they found that participants exposed to nicotine-containing e-cigarettes showed elevated levels of inflammatory markers in their blood. According to the researchers, this could mean that just a few inhalations are enough to trigger an inflammatory reaction in lung tissue.

The results are alarming, as they clearly show that e-cigarettes with nicotine are not a harmless alternative to cigarettes. We have long worked to spread scientifically-based knowledge about nicotine’s health effects, and this research strengthens our conviction that tobacco and new nicotine products should be treated equally under the law, says Kristina Sparreljung, Secretary General of the Swedish Heart-Lung Foundation, in a press release.

For the first time, researchers have been able to demonstrate a direct link between inhaled nicotine and specific inflammation markers in the blood that are connected to the lungs. The researchers believe the absorption rate is particularly concerning, as the body absorbs nicotine faster than with nicotine patches, for example.

Our results are in line with previous studies where nicotine from e-cigarettes has been shown to affect blood vessels by increasing levels of vascular damage markers in the blood. It’s remarkable that even single occasions can produce biological effects. In the long term, this could contribute to the development of both lung diseases and cardiovascular disease, says Fariborz Mobarrez, lecturer and researcher at the Department of Medical Sciences at Uppsala University.

Obesity the most common risk factor for heart attack among Swedes

Published 20 August 2025
– By Editorial Staff
Women who suffer heart attacks often have more risk factors and a worse prognosis than men.
2 minute read

Obesity has overtaken smoking as the primary cause of heart attack among young adults in Sweden, a new study shows.

In the study, which was published in European Heart Journal – Quality of Care and Clinical Outcomes, researchers followed 44,254 people aged 18–59 after they suffered their first heart attack. The study is a registry-based study and was conducted with support from the Swedish Heart-Lung Foundation.

The results show that three out of four young adults who suffered a heart attack had at least one known risk factor – most commonly high blood pressure, diabetes, smoking, or obesity. Furthermore, the study shows that obesity has overtaken smoking as the most common risk factor in this age group. The reason is that the number of smokers has decreased, but at the same time the proportion suffering from obesity has increased markedly. For example, one in four suffered from obesity in 2006, and more than one in three in 2021.

It is concerning that the proportion of people with obesity has overtaken the proportion of smokers as the most common risk factor among young adults. But it also shows that we can do much to prevent heart attacks by finding and treating risk factors in time, says Moa Simonsson, researcher and senior physician in cardiology at Karolinska University Hospital in Stockholm, in a press release.

Difference between men and women

Men run a greater risk of suffering a heart attack compared to women and are often affected earlier in life. At the same time, the study shows that women who suffer heart attacks often have more risk factors, but also that they have a worse prognosis after a heart attack.

It seems that women who have a heart attack need to have a heavier burden of risk factors than men to be affected. This shows that we need to understand more about women’s particular risks, such as complications during pregnancy, says Simonsson.

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