
What do you like to get from your coffee, relaxation or focus? Apparently, the type of beans can change the affect on your brain, but which does what?
Mmm…there’s nothing like the smell of a fresh cup o’ joe! That smell, however, is more than just a nice fragrance. Depending on the beans, the aroma of the coffee can actually change your brain waves.
Recent studies in Japan found that the smell of certain types of coffee beans increased the alpha waves in the brain. These same waves are found in high levels when you’re in a relaxed state. Scientists proved this by having participants simply smell a variety of freshly brewed coffees while testing their brain waves. Relaxation ensued for those who smelled Guatemalan and Jamaican Blue Mountain coffee. The studies also found that roast matters too; dark roasts have a more stable affect, compared to medium roasts.
▼ The dark browns and reds show levels of alpha waves.
All Japan Coffee Association (modified by RocketNews24)
If you want to focus, however, better stick to Brazilian Santos, Hawaiian Kona and Sumatra beans. These beans increase data processing speeds, such as for decision-making and high focus, shown by P300 waves in the brain. Participants were tested in their ability to respond quickly to high frequencies after smelling different roasts. While the Guatemalan and Blue Mountain scored on the higher end, Santos, Kona and Sumatra scored the fastest processing speeds.
▼ The lower the bar graph, the faster the processing speed.
Iyashi Club (Modified by RocketNews24)
Who knew that just the smell of the beans could influence your brain so much? Now you know that if you have to stay up late working or studying, you should stick to Brazilian Santos, Hawaiian Kona and Sumatra. But, if you’re just letting off steam with friends, try the relaxing beans of Guatemala and Jamaica and remember, make it dark roast for a fuller effect!
▼Which coffee beans will you drink?

Source: Naver Matome
Top Image: Pixabay/uroburos
Insert Image: Pixabay/moritz320




Gacha capsule toy machine you control with your brain/prayers created in Japan【Video】
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Samurai Coffee: Try Edo period coffee once enjoyed by Japanese warriors
Beard Papa goes beyond just matcha with its new premium green tea cream puffs
Studio Ghibli releases crystal glass paperweights featuring Totoro and the Catbus
Uniqlo’s high-end sunglasses are a fashion minefield for anyone who isn’t Mr. Sato
Eating cheap sushi in a narrow building in Tokyo is an adventure for bold diners
Japanese hair salons going bankrupt in record numbers
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
Studio Ghibli releases new anime keychains that are like miniature figurines
Brand-new Square Enix Cafe to open in Tokyo…and in Los Angeles too!
Dorayaki from 89-year-old Japanese confectionery shop is one of the best sweets hidden in Tokyo
What are the worst things about living in the Japanese countryside?[Survey]
Retro-style Evangelion T-shirts coming to Uniqlo sister brand GU[Photos]
Viral tweet suggests Japanese convenience store ripping off customers with donuts, so we investigate
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Wisteria season starts early with blooming of Japan’s Great Wisteria in its beautiful garden
Japan’s best conveyor belt sushi restaurant of seven years ago has now, finally, come to Tokyo
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says