Scientists reveal surprisingly easy exercise that may boost your mood in just 10 minutes

It might not take an all-out sprint or long trail run to lift your mood and sharpen focus, according to a new study.

A small new study out of the University of Tsukuba in Japan looked at 24 healthy young adults who completed a slow, 10-minute run on the treadmill in one session and rested in another.

After the easy jog, participants performed faster on a test of attention and self-control and reported feeling more alert and pleasant than they did after the resting phase, according to the study, which was published in the journal Imaging Neuroscience in August.

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Brain monitoring after the jog also showed more activity in parts of the prefrontal cortex, the area of the brain responsible for focus and decision-making.

The jog was purposely kept easy, with participants going at speeds from 1.9 to 3.7 mph on the treadmill. Their average heart rates clocked in at 105 to 107 beats per minute.

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"A single bout of running, even at very slow speed, elicits a pleasant mood and improved executive function," the researchers found.

They added that the finding "sheds light on the slow running benefits to brain health."

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The benefits, they noted, stuck around even after participants' heart rates returned to baseline.

The greater the up-and-down head movement during the jog, the more positive participants' mood was afterward, though that finding was exploratory and does not necessarily prove cause and effect.

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"Easy movement triggers the norepinephrine and dopamine pathways that wake up the part of the brain that is in charge of focus and self-control," explained Dr. John La Puma, a California-based internist and author of "Indoor Epidemic," who was not involved in the study.

Experts agree, however, that it does not mean one brief workout could be a cure-all.

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"A brief jog should help someone get some energy in their system, which may make them feel better about themselves mentally and help them focus," said Dr. Scott Nass, a California-based family medicine physician at SwiftCareMD.

But Nass, who also wasn't involved in the research, said that the effect is likely temporary.

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For people living with depression or anxiety, a jog may briefly clear the mind but is "no substitute for medical care," he told Fox News Digital.

The study was also limited in that it included just 24 healthy, young adults and measured outcomes immediately after just one exercise session. The findings cannot be assumed to apply to older adults, novice runners or people with health conditions and larger studies are needed to confirm the results, Nass said.

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For a practical approach, La Puma suggested taking a 10-minute walk outside before the most mentally demanding part of the day. Add 30-second jogging intervals, keeping the pace easy enough to speak in full sentences without becoming breathless, he said.

People with heart disease, high blood pressure, Type 1 diabetes, recent surgery or joint pain should check with a clinician before starting a new routine, La Puma advised.

Fox News Digital has reached out to the researchers for comment.