Better to act young than to look young

[email protected] (New York Times )
October 7, 2013

Young_than_to_look_youngJane E Brody, Oct 7: At a party I recently attended, a woman in her 60s proudly announced that her periodic facial treatments “have made me look 10 years younger.” A man of similar vintage said he was considering “facial tucks” to raise his sagging jowls.

Some days it seems everyone I meet is afraid of getting old - or at least of looking as old as they are. Occasionally, I see women who have had so many face lifts that they can barely move their lips when they talk, let alone smile.

Business is booming in the anti-aging market. Plastic surgeons who specialise in lifts, tucks and fillers barely noticed the recent recession. Cosmetics with anti-ageing properties fly off the shelf, and new concoctions appear almost weekly.

I admit to supporting the multi-billion dollar skin care industry with my long use of night creams, as well as a slew of daytime lotions that purport to “smooth out” aging skin while protecting it with sunscreen. I also colour my hair, which in its natural state is now about 80 per cent gray.

But I draw the line at injectable fillers and muscle relaxants, face lifts and tummy tucks. I’ll do everything I can to stay out of an operating room. My anti-aging measures, if and when they are needed, will be limited to cataract removal, a hearing aid and glasses for driving.

I wear clothes that suit my personality and activities, not necessarily my age. Shorts and tank tops anchor my summer wardrobe. And I wear colours near my face that are right for my skin tone, avoiding those (like yellow) that are unflattering. Still, cosmetic fixes go only so far to counter the effects of time.

True youthfulness - or, I should say, appearing younger than your age - is much more than skin-deep. Research has shown that youthfulness must come from within.

In one study, a team at Case Western Reserve University in Cleveland analyzed the facial photographs of 186 pairs of identical twins, determining which sibling looked older and why. Factors that contributed to looking older included smoking, sun exposure, stress and depression (or the use of antidepressants), the researchers reported. Other studies have linked depression to higher levels of inflammatory markers and oxidative stress, which can accelerate aging.

The team also found that among those younger than 40, a woman with a heavier body looked older than her leaner twin, but in subjects older than 40, a higher body mass index was associated with a more youthful appearance. Fat fills out wrinkles and makes the face - and presumably other parts of the body - look younger. But there’s a limit to its benefits: obesity is associated with more rapid biological aging.

Another study published last year by researchers at Brigham and Women’s Hospital in Boston found a biological link between stress and accelerated aging. Dr. Olivia I. Okereke and colleagues examined the chromosomes of 5,243 women ages 42 to 69 participating in the Nurses’ Health Study. They found that women with phobic anxiety - irrational fears of anything from social situations to spiders - had shorter telomeres on their chromosomes.

Telomeres are DNA-protein complexes on the ends of chromosomes that are considered biological markers of aging. Shortened telomeres are thought to underlie many of the adverse health effects of aging, and perhaps even to contribute to looking older than one’s years.

Lifestyle changes

A pilot study published online by The Lancet Oncology last month underscored the benefits of limiting stress. Dr. Dean Ornish and colleagues at the Preventive Medicine Research Institute and the University of California, San Francisco, tested the effects of lifestyle changes on the length of telomeres.

Ten men were asked to make changes that included adopting a whole-foods plant-based diet, moderate exercise, stress management techniques (like yoga and meditation), and seeking greater intimacy and social support. After five years, changes in the length of their telomeres were compared with those among 25 men who were not asked to make such changes.

In the men who made lifestyle changes, telomere length increased by an average of 10 per cent; the more changes the men made, the greater the increase in length. But telomere length decreased in the control group by an average of 3 per cent.

Still, youthfulness is not just a question of biology. People are perceived to be younger than their years if they smile and laugh a lot (be proud of those laugh lines!) and are generally cheerful and upbeat, the kind of people who smile at strangers and wish them a good day.

I occasionally pass an older couple who walk together three times a week. With their dour expressions and grudging acknowledgment of my “good morning,” I thought they were in their mid-90s. So one day I asked, only to learn that she was 80 and he was 83.

It also helps to pursue personal and professional activities you enjoy as you get older. My role models include the actress Estelle Parsons, who continues to perform on stage (and can do yoga headstands) at 85, and Dame Judi Dench, 78, who stars in movies despite having to learn her lines orally because macular degeneration has caused her vision to deteriorate.

My dear friend Margaret Shryer, 86, starred in a documentary about age discrimination and performed a one-woman show she wrote at a theater festival in Minneapolis this summer. Another friend, the award-winning broadcaster Lucy Jarvis, cane in hand at 96, still travels abroad to make television documentaries.

To my mind, it is far better to act young than to look young. Of course, it helps to be physically fit.

Too often, those who spend liberally to counter the superficial signs of age neglect their bodies below the neck and become physically old before their time. Muscle tissue inevitably declines with age, but much can be done to minimize and even reverse a loss of strength.

Try using free weights or resistance machines. If these don’t appeal, lift cans of soup (better for lifting than consuming) and continue to do chores that require strength, like digging in the garden or carrying groceries.

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Agencies
June 22,2020

A team of scientists has produced first open source all-atom models of full-length COVID-19 Spike protein that facilitates viral entry into host cells – a discovery that can facilitate a faster vaccine and antiviral drug development.

The group from Seoul National University in South Korea, University of Cambridge in the UK and Lehigh University in the US produced the first open-source all-atom models of a full-length S protein.

The researchers say this is of particular importance because the S protein plays a central role in viral entry into cells, making it a main target for vaccine and antiviral drug development.

"Our models are the first full-length SARS-CoV-2 spike (S) protein models that are available to other scientists," said Wonpil Im, a professor in Lehigh University.

"Our team spent days and nights to build these models very carefully from the known cryo-EM structure portions. Modeling was very challenging because there were many regions where simple modeling failed to provide high-quality models," he wrote in a paper published in The Journal of Physical Chemistry B.

Scientists can use the models to conduct innovative and novel simulation research for the prevention and treatment of Covid-19.

Though the coronavirus uses many different proteins to replicate and invade cells, the Spike protein is the major surface protein that it uses to bind to a receptor.

The total number of global COVID-19 cases was nearing 9 million, while the deaths have increased to over 467,000, according to the Johns Hopkins University.

With 2,279,306 cases and 119,967 deaths, the US continues with the world's highest number of COVID-19 infections and fatalities, according to the CSSE.

Brazil comes in the second place with 1,083,341 infections and 50,591 deaths.

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Agencies
July 8,2020

Probiotics that broaden the mix of helpful bacteria in the gut may help to ease depression, say researchers.

Foods that broaden the profile of helpful bacteria in the gut are collectively known as probiotics. These "good bacteria" can be taken as supplements, or found naturally in yoghurts or fermented foods.

For the findings, the research team from the University of Brighton in the UK searched for relevant studies published in English between 2003 and 2019, which looked at the potential therapeutic contribution of pre-and probiotics in adults with depression and/or anxiety disorders.

Out of an initial haul of 71 studies, just seven met all the criteria for inclusion. All 7 investigated at least one probiotic strain; four looked at the effect of combinations of multiple strains.In all, 12 probiotic strains featured in the selected studies, primarily Lactobacillus acidophilus, Lactobacillus casei, and Bifidobacterium bifidium.

One study looked at combined pre-probiotic treatment, while one looked at prebiotic therapy by itself. The studies varied considerably in their design, methods used, and clinical considerations, but all of them concluded that probiotic supplements either alone or in combination with prebiotics may be linked to measurable reductions in depression.

And every study showed a significant fall or improvement in anxiety symptoms and clinically relevant changes in biochemical measures of anxiety or depression with probiotic or combined pre-probiotic use.

Of the 12 different probiotics investigated, 11 were potentially useful, the findings showed.'Probiotics may help reduce the production of inflammatory chemicals, such as cytokines, as is the case in inflammatory bowel disease, the researchers suggested.

"They may help direct the action of tryptophan, a chemical thought to be important in the gut-brain axis in psychiatric disorders," they added.

In this way, with a better understanding of the mechanisms, probiotics may prove to be a useful tool across a wide range of conditions," the authors wrote.

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Agencies
June 4,2020

The World Health Organisation on Wednesday said that anti-malarial drug hydroxychloroquine (HCQ) will return to the solidarity trial for the potential treatment of coronavirus disease.

At a press conference in the WHO headquarters in Geneva, Director General Tedros Adhanom Ghebreyesus said: "On the basis of the available mortality data, the members of the committee recommended that there are no reasons to modify the trial protocol. The Executive Group received this recommendation and endorsed continuation of all arms of the solidarity trial, including hydroxychloroquine."

The world health body had temporarily suspended the usage of HCQ from the solidarity trial for coronavirus treatment on May 25 soon after a study published in one of the most reliable medical journals, which had suggested that the drug could cause more fatalities among COVID-19 patients.

However, the WHO chief said that the decision was taken as a precaution while the safety data was reviewed.

Ghebreyesus also said that the Data Safety and Monitoring Committee will continue to closely monitor the safety of all therapeutics being tested in the solidarity trial.

"So far, more than 3,500 patients have been recruited in 35 countries. WHO is committed to accelerating the development of effective therapeutics, vaccines and diagnostics as part of our commitment to serving the world with science, solutions and solidarity," he said.

Soon after HCQ was suspended from the trial, the Indian government had said that the antimalarial drug has been known for its benefits for a long time and its usage will be continued on the frontline workers, including police and healthcare professionals, as prophylaxis. The government had also said that studies were being conducted and the drug would be included in the clinical trial also for the treatment of coronavirus disease.

US President Donald Trump also had strongly advocated the use of HCQ and called it a "game-changer". He went to the extent of saying that he had taken the medicine.

Launched by WHO and partners, solidarity trial is an international clinical trial to find an effective treatment for COVID-19, including drugs to slow the progression of the disease or improve survival. The trial, which enrols patients from different countries, "will compare four treatment options against standard of care to assess their relative effectiveness against COVID-19", said WHO. 

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