Smelling coffee relieves fatigue better than drinking coffee.

After sampling the brains of mice, they found that the smell of coffee enhanced the activity of critical genes that promote cell survival and reduce anxiety.

Researchers believe that the aroma of roasted coffee beans can calm serious nerves-and just a little fragrance can alleviate the effects of a long night's sleep on the brain.

But a new study suggests that this function may be caused by the aroma of coffee rather than coffee itself.

When you get up in the morning, a novel cup of ground coffee can be refreshing.

Smell: just smelling coffee can help relieve fatigue more than drinking a cup of coffee.

Sooner or later, they say, people's fatigue can be alleviated by extracting chemicals from coffee and releasing them into the air.

Scientists in Tsukuba, Japan, put 16 mice in cages with an inch of water to keep them awake for 24 hours. Then, put half of the mice in the fragrance of roasted coffee.

After sampling the brains of mice, they found that the smell of coffee enhanced the activity of critical genes that promote cell survival and reduce anxiety.

Professor Yoshio, who led the Tsukuba research team in Japan, said that when people drink coffee in order to stay up late, the taste of the coffee alone reduces the stress caused by not sleeping.

Smelling coffee beans is better than drinking coffee, he added. But will the smell of other foods have a similar effect?