Grab your gym clothes and walking shoes because your friend is probably right. While there haven't been many studies on exercise protecting against infections, the few that exist all suggest it does.
The biggest study on this, done by Harvard Medical School, was published in JAMA Network Open in February 2024.
The study tracked almost 62,000 adults aged 45 and above from before the COVID pandemic started in early 2020 until the end of 2022. Researchers gathered information on factors like chronic diseases, income levels, and lifestyle habits that might affect the risk of infection. They also kept an eye on who got COVID-19 and how severe their symptoms were.
Out of all the participants, 69% were considered "sufficiently active," meaning they did moderate to vigorous exercise for at least 150 minutes every week. Another 11% were "insufficiently active," and 20% didn't exercise at all.
The results showed that those who kept up with enough physical activity were 10% less likely to get COVID-19 and 27% less likely to be hospitalized because of the virus compared to those who didn't exercise. This protective effect was especially clear among women. Interestingly, people who exercised a little (but not enough to meet the recommended amount) didn't see much better results than those who didn't exercise at all. These findings suggest that a good amount of physical activity is needed to protect against COVID-19.
After three years, it is evident that extended COVID affects tens of millions of people. According to estimates from senior Harvard economists, the United States may have to pay up to $3.7 trillion in future years for medical care for ailments related to COVID-19. The cost is probably going to be significantly higher if the millions of people who are currently afflicted with long COVID continue to suffer from the sickness for years or if long COVID turns into a chronic condition.
The phenomenon, which is a result of the global pandemic, continues to catch patients off guard. However, Harvard researchers concur with national statistics showing a sizeable number of virus-infected individuals exhibit high strand-shedding.
Along with symptoms like exhaustion, brain fog, and shortness of breath, thinning hair can be a sign of a COVID bout or a less well-known sign of long-term COVID. According to Dr. Deborah Scott, co-director of the Brigham and Women's Hospital's hair loss clinic, some patients are even conspicuously losing hair as a result of dealing with the pandemic's ongoing mental and emotional stress.
It literally makes the situation worse. You have COVID-related illness first, then hair loss, according to Dr. Scott. "Several patients who had lost up to 30% of their hair came to me in tears. Most of them, I believe, were shocked to find that it was connected to COVID.
Signs on the scalp that a doctor should examine
Even if the shedding of hair waxes and wanes naturally, other symptoms of the scalp should make you visit a doctor. Harvard specialists say these include
Itching or burning, which can also indicate an inflammatory scalp condition, may be a sign of ongoing hair loss, especially six months or more after a COVID-19 infection or another physical or emotional stressor. There may also be lacklustre regrowth more obvious in women.
Women probably pay more attention to it than men do, if only because our hair is usually longer and fuller. According to Dr. Scott, "if you're losing a lot of long hair, it's more obvious than if you're losing a lot of short hair."
However, COVID-19 is not the only illness that causes hair to thin. It is merely the most recent identified cause of the long-known medical condition known as telogen effluvium, or TE. This occurs when extreme physical or emotional stress throws off our body's natural cycle of hair growth.
Testing of wastewater has detected increased COVID levels and even poliovirus. Can it anticipate future virus outbreaks?
When can we anticipate the next increase in COVID?
For months, the United States has documented more than 100,000 new COVID-19 cases and 300 deaths every day. In reality, the number of cases is likely substantially higher due to declining testing rates and the exclusion of positive home tests from official counts. With this many cases and new strains coming out, it seems likely that there will be more in the future.
When then?
Possibly in the coming weeks, when new, extremely contagious variants spread. Or perhaps in autumn and winter when we spend more time indoors. Or perhaps this virus will surprise us once more and wait until next year to reappear.
By the time we realise that COVID-19 infections are quickly spreading in a community, the pandemic has already been ongoing for some time. Because the first signs of the infection are often absent, it could spread for a while before anyone notices.
If we could predict when the next increase will occur, we might be able to take preventative actions. And this is where your stool comes in — faeces, poop, or whatever term you want — comes in.
Using wastewater to detect viral outbreaks
When a person has a viral infection, the virus can frequently be discovered in their faeces. Therefore, it is possible to test the wastewater of a town, city, or community for the presence of viruses and to determine the rate of increase over time.
This method has been utilised since the 1940s when polio was a significant threat. But testing wastewater can also find different kinds of hepatitis, the norovirus that causes flu-like symptoms, and maybe even measles.
The testing procedures for wastewater have evolved throughout time. In the beginning, people tried to grow viruses from water samples. More recently, they have been trying to find viral genetic material.
Polio and COVID were discovered in wastewater.
In June 2022, testing of London's wastewater detected the virus that causes polio, a potentially fatal or crippling disease. Even though no active cases of polio have been found in London yet, this discovery has led to a look into where the virus came from, who might be infected, and if it is a threat to public health.
When everyone was on COVID lockdown in 2020, hiking became a lot more popular. According to a report, the number of hikes in 2020 was 171% higher than in 2019. The number of people hiking alone went up by 135%.
Dr Edward Phillips, an assistant professor of physical medicine and rehabilitation at Harvard Medical School, says, "This makes sense since hiking remains one of the safest COVID activities because it is done outside and away from confined group settings." "Plus, what's a better way to get away from being stuck inside than to spend some time in nature?"
Not just a walk
Hiking is one of the best ways to feel better in both the body and the mind. First of all, it's a great way to build muscles in your legs. When you hike uphill, you work your hips and buttocks. When you hike downhill, you work your quads (the muscles in the front of your thighs).
Walking is a simple way to work out, but it's not always the best way to keep up the aerobic intensity. "Most people walk slowly and stop and start a lot, which keeps their heart rate from going up," says Dr. Phillips.
But hiking up and down uneven terrain uses more energy than walking on a flat surface. Your body has to work harder, so your heart rate goes up, you burn more calories, and your cardiovascular fitness improves.
You can also learn how to stay steady on your feet by trying to find your footing on a trail. This improves balance, which is a skill that keeps you from taking dangerous falls. As Dr. Phillips says, "When you challenge your body, it will change." So, if the hiking terrain makes you lose your balance, it will force your internal system to get better.
Hiking can also help your mental health. Studies have shown that older people who spend time in nature regularly sleep better, have less stress, less anxiety, and less depression. You can go hiking alone or with other people. Researchers have found that going on a nature walk with a group is just as good for your mental health as going on a hike by yourself.
What is monkeypox?
Monkeypox is an infection caused by a virus in the same family as smallpox. It causes a comparable (though typically less severe) disease and is most widespread in central and western Africa. It was first detected in studied monkeys more than half a century ago. Certain squirrels and rats found in Africa are among other species that host this virus.
Currently, an outbreak is spreading swiftly outside of Africa. The virus has been reported in at least a dozen countries, including the US, Canada, Israel, and across Europe. As of the time of writing, Reuters has reported more than one hundred confirmed or suspected cases, making this the largest known outbreak outside of Africa. There have been no recorded deaths thus far.
Naturally, news of an unusual virus spreading rapidly across the globe brings to mind the beginning of the COVID-19 pandemic. But monkeypox was discovered for the first time in 1958, and several things about it suggest that it is likely to be much less dangerous.
What symptoms does monkeypox cause?
The earliest signs of monkeypox are influenza-like and include fever and sore throat. Fever, tiredness, headache, lymph nodes that are swollen.
A few days later, a distinctive rash develops. It frequently begins on the face and spreads to the palms, arms, legs, and other body regions. Recent incidences have shown vaginal rashes. Over the course of two weeks, the rash progresses from small, flat spots to blisters (vesicles) resembling chickenpox, and finally to bigger, pus-filled blisters. These wounds can take weeks to scab over. Once this occurs, a person is no longer infectious.
Even though the illness is usually mild, it can lead to complications like pneumonia, blindness from an eye infection, and sepsis, an infection that could kill you.
How does one contract monkeypox?
This disease typically affects people who have had contact with diseased animals. It may result from a bite, scratch, or consumption of raw animal meat.
The virus can spread among humans in three ways:
Inhaling respiratory droplets directly touching an infected person less frequently, as through handling an infected person's clothing.
The respiratory pathway is characterized by large droplets that do not linger or go far. Consequently, transmission from person to person often needs prolonged, intimate contact.
Even with mild COVID, less visible lapses in memory and attention may occur.
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COVID-19 rates are rising across the country and in many parts of the world, making it more critical than ever to protect ourselves and others. The greatest defence against COVID-19 is a multi-layered approach, beginning with vaccines and boosters for everyone who is eligible.
Unsurprisingly, marketers are capitalizing on our anxieties. A small business has sprung up around chewable, pills, and powders claiming to "boost" or "support" your immune system. Some even assert that proper food and physical exercise are all that are truly necessary to avoid illness. However, are any of these assertions true?
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What is Omicron?
The Chicago Public Schools (CPS) told parents on Thursday evening that classes will be canceled for the third day in a row on Friday due to a failure to reach an agreement between the district and the Chicago Teachers Union.
Gov. Chris Sununu of New Hampshire announced the deployment of another 100 National Guard personnel to assist the state's healthcare system in the wake of an increase in Covid-19 cases.
Louisiana sets a new state record for daily Covid-19 cases.
Peru raised its coronavirus pandemic alert level to high and will implement new restrictions starting Friday, including a curfew in 25 provinces, according to state news agency Andina.
Peru detected its first four cases of the Omicron variant in the country on Dec.19 and is dealing with a "third wave" of infections, state media said.
The new restrictions include a curfew from 11 p.m. to 4 a.m. local time and new capacity limits for businesses and commercial activities.