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Can booster shots beat the coronavirus? Read what experts have to say
The Omicron variant of coronavirus has created an unprecedented situation, leading to surge in Covid-19 infection and increasing the vaccination doses. Many countries across the world are asking people to take a third – or the booster shot – to tackle the heavily mutated Omicron.
Israel goes one step further and is providing its population with a fourth dose of Covid-19 vaccine. India has also launched a program to vaccinate eligible populations with preventive doses.
But is this the way forward? Do we have to get a booster shot every few months? Healthcare experts and researchers are puzzled by the constantly mutating coronavirus and have been advocating for increased vaccine coverage. But in many interviews, these experts stated that trying to increase the entire population every few months is unrealistic.
Akiko Iwasaki, a professor of immunobiology at Yale University and one of the most authoritative voices for Covid-19, told the New York Times, “There is a better way than a booster immunization every six months.”
“It doesn’t seem like a sustainable long-term strategy, of course,” said Deepta Bhattacharya, another immunologist at the University of Arizona.
Given its frequent mutations, booster shots are advocated to improve immunity to the coronavirus. But there is no data to support the effectiveness of this dose.
The boost to immunity is temporary, and some studies in the United States have shown that antibody levels drop just a few weeks after the third dose.
“Even with that many antibodies, it’s hard to stop the virus for long. The bar is much higher now than it used to be, and maybe an Omicron-specific vaccine will do better,” California virologist Shane Crotty told The New York Times.
Late last year, Pfizer Chief Executive Albert Bourla said people may need a fourth Covid-19 shot sooner than expected because of the Omicron variant. The announcement comes days after Pfizer and BioNTech released the results of a study showing that a third of the vaccine was effective against Omicron, but the two-dose regimen saw a significant drop in its ability to protect against severely mutated viruses.
But in the United States, the worst-affected country, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said it was too early to discuss a possible fourth dose of a Covid-19 vaccine.
Singapore’s Health Minister Ong Ye kung reiterated the same idea on Facebook on Friday. “If you recover well from the infection without complications, your immune system will experience intense stimulation. Think of it as a fairly powerful vaccination,” he said.
Ong said that for those who are infected and then vaccinated, or who are infected between vaccinations, there is no rush to boost immunity.
Complete News source : Hindustan Times
health and remedies
Train smarter, not harder: How taking occasional breaks from gym can revolutionise your fitness routine
Taking regular breaks from intense training, like deload weeks, helps your body recover, preventing fatigue and injury, and ultimately boosts fitness gains.
When it comes to getting fit, the idea of spending hours at the gym might come to mind, but many fitness experts argue that taking a “deload week” every six to eight weeks is actually key to improving your fitness gains. A deload week involves reducing the intensity of workouts to allow the body to recover from the fatigue and muscle damage caused by intense training.
While high-intensity training helps build strength and fitness, it can also lead to muscle strain, and without adequate recovery, these gains can’t fully materialise. Deload weeks give the body much-needed rest to repair and rebuild, ensuring continued progress. (Also read: Bhagyashree swears by this super easy exercise for instant leg pain relief and better mobility. Watch how to do it )
Why recovery is key for muscle growth
According to an article by The Conversation, intense exercise can cause tiny tears in muscle fibres, leading to inflammation that requires rest or low-intensity exercise to heal. This inflammation is essential for muscle growth and fitness improvements. However, without proper recovery, muscles remain in a state of slight damage, preventing inflammation from resolving. This chronic state of inflammation can hinder muscle function, reducing oxygen efficiency and impairing performance. Giving muscles time to recover through rest ensures they repair properly and are primed for continued progress, setting us up for greater success in our fitness journey.
Many gymgoers fear taking time off and are worried it will lead to a loss of gains. However, research shows that muscle genes have a “memory imprint,” which keeps them in a semi-prepared state. This allows muscles to respond more quickly and effectively to future training, promoting growth after a rest period. Even after extended periods of reduced intensity, up to seven weeks, muscular fitness can be restored to prime condition—and in some cases, surpass previous levels. Interestingly, recovery can occur twice as fast as it took to reach peak fitness initially, even if some strength is lost.
Taking time off from intense training is crucial to prevent muscle soreness and avoid overtraining syndrome. Overtraining occurs when the body doesn’t get enough rest, leading to prolonged fatigue, decreased performance, and mood disturbances. Symptoms develop gradually, making overtraining difficult to recognize until it’s severe. Rest is essential to avoid these issues and ensure long-term progress in training.
Role of overtraining syndrome and deload weeks
Overtraining syndrome is challenging to quantify due to its vague symptoms. Studies suggest it may affect as few as 10% of elite athletes, though rates could climb to 60% among highly competitive individuals. Recovery is essential for both fitness and overall health. When engaging in heavy gym routines, it’s vital to incorporate sufficient recovery time into your workout plan. Unlike rest days, which involve little to no exercise once or twice a week, deload weeks feature lighter training at reduced intensity—typically about 50% fewer workouts or a 20% drop in workout intensity.
Both rest days and deload weeks are essential for recovery and crucial to improving fitness. It’s not about choosing one over the other—they complement each other. For instance, intense training for marathons, Ironman, or CrossFit competitions requires weekly rest days alongside scheduled deload weeks. However, for recreational gym-goers exercising 1–3 times weekly at a moderate intensity, the recovery from this routine is often sufficient without the need for additional deload weeks.
Fitness influencers recommend incorporating deload weeks into training schedules every 4–8 weeks, aligning closely with the expert advice of 4–6 weeks. However, it’s crucial to listen to your body and schedule deload weeks as needed. If your performance plateaus or worsens, it may signal time for a deload. Training plans should be flexible enough to allow rest when required. Deload weeks not only enhance performance but also support overall health.
Disclaimer: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.
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