When cardiologist Ethan Weiss concluded his 12-week study of weight loss and intermittent fasting, the results surprised him. The randomized trial set up by Weiss, a professor at the University of California, San Francisco, split participants into a control group and another group who ate all their meals between noon and 8 p.m. He expected to find more weight loss in the fasting group. But the results he published in JAMA Internal Medicine last fall showed something else: that those following the time-restricted eating schedule lost roughly the same amount of weight as those in the control group. What’s more, the weight they did lose was lean muscle mass, and not fat.
Randomized controlled trials are considered the gold standard when it comes to scientific studies. Yet when it comes to figuring out how to lose weight, or which sort of diet is best, it’s often the case that different trials yield much different results, even when participants follow similar nutritional plans. (Another 12-week trial of time-restricted eating showed the opposite effect of Weiss’s study: Participants who followed a time-restricted schedule lost weight without losing muscle mass.)
This muddle is enough to leave anyone scratching their head. And it points to a bigger issue in the science of weight loss: There’s a lot that researchers have figured out, but there’s still no consensus on the single optimal diet or way to lose weight—and there might not ever be.
Xalapa is the capital city of the Mexican state of Veracruz and the name of the surrounding municipality. In the 2005 census, the city reported a population of 387,879, and the municipality of which it serves as municipal seat reported a population of 413,136. The municipality has an area of 118.45 km². Xalapa lies near the geographic center of the state and is the second-largest city in the state after the city of Veracruz to the southeast.
The name Xalapa comes from the Classical Nahuatl roots xālli [ʃaːlːi] “sand” and āpan [aːpan] “place of water”, which means approximately “spring in the sand”. It’s classically pronounced [ʃalaːpan] in Nahuatl, although the final /n/ is often omitted. This was adopted into Spanish as Xalapa.
The complete name of the city is Xalapa-Enríquez, bestowed in honor of a governor from the 19th century, Juan de la Luz Enríquez. The city’s nickname, City of Flowers (Spanish: La ciudad de las flores), was given by Alexander von Humboldt, who visited the city 10 February 1804. The reference is also related to the city’s older colonial history. According to folklore, the Spanish believed that Jalapa was the birthplace and home of the world’s most beautiful woman, la Florecita, which literally means “little flower”. The residents of Xalapa are called Xalapeños or Jalapeños, which is the name given to the popular large peppers cultivated in this area. Wikipedia
If you’re looking for a quick, personal-trainer-approved way to burn out your shoulders, back, chest, and arms, an upper-body circuit workout can be a fantastic choice for your next routine.
Circuit training—where you go through a bunch of exercises without resting between them—is one of the most efficient ways to work all the upper-body muscle groups you’re targeting. Plus, when you don’t take any rest, you get a cardio boost along with the strength-building benefits of weight training, like getting stronger, maintaining bone density, and offsetting an age-related decline in muscle mass.
This workout, created by NASM-certified personal trainer Alicia Jamison, a trainer at Bodyspace Fitness in New York City, predominantly uses pulling and pushing exercises to fire up your entire upper body. “By hitting all of those muscle groups, you’re avoiding muscle imbalances, which can lead to injury,” Jamison tells SELF.
Pulling exercises get your muscles to contract as you pull your arms toward your body—whether you’re using a weight or not. For this workout, Jamison chose the bodyweight pulldown and single-arm row to light up the muscles in the back of your body, like your rhomboids (the upper-back muscles that help you retract your shoulder blades) and your latissimus dorsi (the wide muscles that stretch from your armpit to your spine). Strengthening those back muscles helps with posture, especially if you spend most of the day sitting down, she explains.
Our homes are our sanctuaries—a fact that became clear to a lot of people this past year when they suddenly had to spend all their time there. But your indoor air might be dirtier than you think, and that could be making it uncomfortable at home, and potentially even make you sick.
There are a few things you can do to help and devices you can buy, like an air purifier, a dehumidifier, and a humidifier. But they aren’t cheap, so you don’t need to spend the money on anything if you aren’t already struggling with your indoor air quality. These are potential tools, not necessities. While their names are self-explanatory, it’s not as easy to figure out when each one is actually needed in your home. We talked to experts, read research reports, and tested some products. Below is what we found, and what we advise.
.
You’ll be seeing more air purifiers in schools and offices as the world deals with the ongoing Covid-19 pandemic. Read on to see which devices make sense for your home. Photograph: Getty Images
A supernova (/ˌsuːpərˈnoʊvə/ plural: supernovae /ˌsuːpərˈnoʊviː/ or supernovas, abbreviations: SN and SNe) is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole or is completely destroyed. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy before fading over several weeks or months.
Supernovae are more energetic than novae. In Latin, nova means “new”, referring astronomically to what appears to be a temporary new bright star. Adding the prefix “super-” distinguishes supernovae from ordinary novae, which are far less luminous. The word supernova was coined by Walter Baade and Fritz Zwicky in 1929.
The most recent directly observed supernova in the Milky Way was Kepler’s Supernova in 1604, but the remnants of more recent supernovae have been found. Observations of supernovae in other galaxies suggest they occur in the Milky Way on average about three times every century. These supernovae would almost certainly be observable with modern astronomical telescopes. The most recent naked-eye supernova was SN 1987A, the explosion of a blue supergiant star in the Large Magellanic Cloud, a satellite of the Milky Way.
Some content on this page was disabled on April 15, 2025 as a result of a DMCA takedown notice from Guardian Media Group. You can learn more about the DMCA here:
It’s no secret that aerobic exercise can help stave off some of the ravages of aging. But a growing body of research suggests that swimming might provide a unique boost to brain health.
Regular swimming has been shown to improve memory, cognitive function, immune response, and mood. Swimming may also help repair damage from stress and forge new neural connections in the brain.
But scientists are still trying to unravel how and why swimming, in particular, produces these brain-enhancing effects.
As a neurobiologist trained in brain physiology, a fitness enthusiast, and a mom, I spend hours at the local pool during the summer. It’s not unusual to see children gleefully splashing and swimming while their parents sunbathe at a distance – and I’ve been one of those parents observing from the poolside plenty of times. But if more adults recognized the cognitive and mental health benefits of swimming, they might be more inclined to jump in the pool alongside their kids.
.
Swimming offers a host of beneficial effects on the brain. Stanislaw Pytel/Stone via Getty Images
In the world, human beings are facing various problems. People who are full of greed, anger, and ignorance are seen to be fighting with each other in words and deeds. As the fighting continues, various problems such as civil wars, wars of aggression, and wars of aggression are occurring. As world peace is being destroyed, humans are facing unbearable problems. Innocent children and women are not getting the rights they deserve and deserve. I can't think of one thing every time. What is it? The United Nations. If we look at the responsibilities and duties of the United Nations, I think it is not suitable for solving the problems that are happening in the world today. In fact, the United Nations and the World Security Council, such an organization must rule the world, must be able to give orders, and must have various ways to obey orders. There must be no organization that can influence more than that organization. There should be experts from each country. They can even dominate the superpowers like the US, China, and Britain. Only then will global peace be achieved quickly. Now, if a country with power develops more militarily, economically, or socially than its own country, then powerful countries will jealously seek out enemies and wage war. Or they will attack with fighter jets. In this, innocent people are losing their lives. No one understands the value of a life. You should think about how to achieve global peace by controlling these. If the US continues to be the permanent president of the UN, world peace will never be achieved. If you think carefully, no one sees that they are working for the common good, but for their own benefit, for the benefit of their own country. The permanent president of the UN and the Security Council has rejected this, As a young Rohingya, I have come to realize that only by electing the president and secretary from among the countries in the world through a secret ballot system and governing the world fairly can we achieve global peace. The United Nations and the Security Council are organizations in which any country must govern, give orders, and make them obey their orders. For example, only when a defendant is tried in court can we hold the leaders of the countries in check and control them, can we achieve global peace smoothly. Otherwise, it will not be easy for powerful countries to use various excuses to end this war every year, every year, for the benefit of themselves and their countries. No country's leaders pay any attention to the words of the United Nations and the Security Council. If we look at it in practice, look at the Rohingya issue. Myanmar is a small country. Even that country has been under siege for 8 years. What action can be taken? Why is the UN and the Security Council Powerless? Without such Power, how can the organization bring about global peace? Everyone should think about it. Whether there is a veto or a strong one, all countries in the world can only achieve global peace if they are subject to the UN and the Security Council. Seek peace in the quiet embrace of nature. Peace is an indispensable need of the human race. It is not as if one person can kill another person, and it is as if one country can attack another country, but instead of trying to build peace, we must try to destroy the peace now, and the world is getting hotter and is on the verge of collapse. I especially appeal to all the world experts to urgently try to bring about peace in all parts of the world. Mr, Noor Muhamed Arkhan Rohingya Youth Myanmar
Film and Writing Festival for Comedy. Showcasing best of comedy short films at the FEEDBACK Film Festival. Plus, showcasing best of comedy novels, short stories, poems, screenplays (TV, short, feature) at the festival performed by professional actors.
Science
Swimming offers a host of beneficial effects on the brain. 
