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Travel See spectacular fall foliage in these national parks

22:20  18 october  2019
22:20  18 october  2019 Source:   nationalgeographic.com

The Fall Foliage Season Will Be Delayed, According to Experts

The Fall Foliage Season Will Be Delayed, According to Experts The Fall Foliage Season Will Be Delayed, According to Experts

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We all know that air pollution can be detrimental to our health in a myriad of ways, perhaps most notably to our respiratory systems. According to new research, however, the negative effects of air pollution may also extend to our scalp (which, when you think about it, makes perfect sense). Scientists found that exposure to common air pollutants (called particulate matter, or PM for short) could be linked to hair loss.

To study this, researchers exposed cells from hair follicles to different levels of dust and diesel PM for 24 hours. Afterward, they measured different protein levels in the cells and found that both pollutants decreased the level of a specific protein that is responsible for hair growth (that specific protein, for those curious, is called β-catenin). In other words, they found that air pollution zaps the protein that fuels hair growth from your follicles, which leads to hair loss.

2019 Travel Guide to Fall Foliage in the United States

  2019 Travel Guide to Fall Foliage in the United States Warm temperatures may mean a slight delay but healthy forests will put on a spectacular show.National Weather Service forecasts indicate that autumn colors will be late (but still great) again this year on both the east and west coasts due to above-average temperatures this month. However, the middle of the country remains on track.

"The research found that when the cells on the human scalp were exposed to common air pollutants created from burning fossil fuels, the proteins in the cells that are responsible for hair growth and hair retention were significantly reduced," study leader Hyuk Chul Kwon tells Allure. Chul Kwon, who presented the findings at the 28th European Academy of Dermatology and Venereology Congress in Madrid last week, says, "The more pollutants that the cells were exposed to, the bigger this impact seemed to be."

What exactly is particulate matter (PM), and what does this research mean for those of us who live in large cities? First off, PM is "made up of small solid particles and droplets in the air that we breathe," explains certified trichologist Michelle Blaisure. PM is all of the gunk in the air that constitutes what we consider to be air pollution, otherwise known as "that haze you see in the atmosphere on bad air quality days," Blaisure says.

The Best Fall Foliage Cruises Across the U.S.

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In Blaisure's opinion, these study findings aren't surprising — but that's not to say that they aren't concerning. "We know that the health of your scalp skin is important in healthy hair growth and pollution can be detrimental to your skin," Blaisure says. "If the skin is compromised, the hair follicle can be affected as the follicle is an appendage of the skin."

Board-certified dermatologist Adarsh Vijay Mudgil agrees, saying that "although the study's findings are interesting, it's important to remember that this is a laboratory study." Why? Because, as Mudgil points out, "in the actual human body, there are a lot more variables at play."

For starters, one of those variables is that "the skin is a barrier designed to protect from outside invaders," Blaisure explains. Second of all, this is where your hair-care routine comes into play; Just like you (hopefully) wouldn't go to sleep without cleansing the day’s grime off of your skin, the same should apply to your scalp — which is also skin. "It is important to shampoo and use exfoliating products on a regular basis to keep your hair and scalp healthy and free of toxins and pollutants," Blaisure advises.

This Is When You Should Go to America’s National Parks If You Want to Avoid the Crowds

This Is When You Should Go to America’s National Parks If You Want to Avoid the Crowds You’ll want to head to Yellowstone National Park in January, when the weather might be on the cool side but you won’t have to share the spectacular scenery with tens of thousands of other people. January is also a good time to check out the Grand Canyon, which, while always crowded, sees a slight dip in the winter. © Paul Souders/Getty ImagesAmerica’s national parks are diverse and varied, but one thing remains a constant among many: lots of people. Thanks to a visual study completed last year, however, you can now plan around the crowds. © Provided by TIME Inc. Jordan Vincent © Provided by TIME Inc.

Lastly, it's also important to remember that the "research was undertaken in a laboratory," Chul Kwon points out, wherein pollutants were directly exposed to the cells from hair follicles for a period of 24 hours. Therefore, "further research needs to be undertaken to understand just how quickly this affects people regularly exposed to pollutants in their day-to-day lives," Chul Kwon says.

Still, the bottom line here is that this research provides new insight into the many ways in which air pollution can harm our health.

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Which U.S. Region Is Most Obsessed With Pumpkin Spice? .
While pumpkin spice lattes reign supreme, we’ll eat the cinnamon-y spice blend in pretty much anything.Maybe California, whose year-long temperate weather somewhat blurs seasonal changes, enthusiastically embraces pumpkin spice offerings as a way of convincing itself that autumn has arrived. If that’s the case, the reason why Washington, Oregon, and Utah all rank so highly remains a mystery.

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