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Covid-19 virus piggybacks only black carbon emission, says study

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Covid-19 virus piggybacks only black carbon emission, says study

A new study has suggested that Covid-19 virus piggybacks only black carbon emitted during biomass burning and not all PM2.5 particles. The study, conducted by Pune-based Indian Institute of Tropical Meteorology and published in the journal ELSEVIER, is based on data collected from Delhi from September to December last year and the 24-hour average of particulate matter (PM) 2.5 and black carbon (BC).

PM2.5 are fine particles which penetrate deep into the body and ignite inflammation in the lungs and respiratory tract that leads to the risk of having cardiovascular and respiratory problems including a weak immune system. PM2.5 consists of black carbon, often called soot and polycyclic aromatic hydrocarbons (PAHs) among others. Several studies have linked air pollution to higher Covid-19 cases.

A study carried out in Italy correlated the incidence of coronavirus cases with PM2.5 levels, authors Aditi Rathod and Gufran Beig said, reports news agency PTI. “However, in this paper, we argue that not all PM2.5 particles carry the virus. It is only black carbon which is emitted during biomass burning which carries the virus,” Beig, senior scientist and founder-project director, System of Air Quality Forecasting And Research (SAFAR), said.

The study says that the aged biomass black carbon particles tend to aggregate and react with other compounds to grow in size, providing temporary habitat to viruses leading to the rapid increase in Covid-19 cases, which declined after the crop burning stopped. The researchers found that the concentration of black carbon “directly corresponds to the speed at which infections spread after the onset of winter and stubble burning period and then reduced with a declining trend in BC with reduction in stubble fire counts”.

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News Source : Indian Express

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Train smarter, not harder: How taking occasional breaks from gym can revolutionise your fitness routine

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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.

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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.

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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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