When you're young for many there's nothing better than living in a big concrete city with lots of people, lots of buildings and lots of people.

SOME PEOPLE MOVE OUT OF BIG CITIES TO FIND GREEN SPACE WHEN THEY'RE OLDER

But as you get older green spaces become more and more important to your mental health. In fact a recent study by Dr. Marcia Pescador Jimenez, an assistant professor of epidemiology at the Boston University School of Public Health found green spaces may help slow down cognitive decline.

4. Go to the Beach
Steilacoom Beach State Park via Canva
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SO WHAT IS THE INTENT OF THE STUDY?

The intent of the study was to understand why living near green spaces in your prime years can help your brain as you become older. So what did the study find specifically? It found that living around green spaces in middle age can delay declines by up to 8 months.
That's not a lot but we'll take all we can get when it comes to declines right?

LOTS OF STUDIES BUT THIS ONE IS DIFFERENT

While some other studies have found links between green spaces and the health of your mind this study is being called different because of the scope and length of the study which involved 16,000 people over the age of 70. Experts say the research shows the importance of making green space a priority for residents.

TIME TO MOVE TO A GREEN SPACE TO SAVE YOUR MIND

With all the cases of Alzheimers in America today the study shows that green spaces may be the key to delaying or preventing these declines. The study is published in the journal Environmental Health Perspectives.

LOOK: Stunning vintage photos capture the beauty of America's national parks

Today these parks are located throughout the country in 25 states and the U.S. Virgin Islands. The land encompassing them was either purchased or donated, though much of it had been inhabited by native people for thousands of years before the founding of the United States. These areas are protected and revered as educational resources about the natural world, and as spaces for exploration.

Keep scrolling for 50 vintage photos that show the beauty of America's national parks.

Gallery Credit: Alexander Raeburn

LOOK: See how much gasoline cost the year you started driving

To find out more about how has the price of gas changed throughout the years, Stacker ran the numbers on the cost of a gallon of gasoline for each of the last 84 years. Using data from the Bureau of Labor Statistics (released in April 2020), we analyzed the average price for a gallon of unleaded regular gasoline from 1976 to 2020 along with the Consumer Price Index (CPI) for unleaded regular gasoline from 1937 to 1976, including the absolute and inflation-adjusted prices for each year.

Read on to explore the cost of gas over time and rediscover just how much a gallon was when you first started driving.

Gallery Credit: Sophia Crisafulli

LOOK: 25 must-visit hidden gems from across the US

From secret gardens to underground caves, Stacker compiled a list of 25 must-visit hidden gems from across the United States using travel guides, news articles, and company websites.

Gallery Credit: Abby Monteil