Researchers at the University of Iowa studied 60 Parkinson's patients who did not have dementia and could walk on their own.
They participated in three, 45 minute walking sessions a week for six months.
They found walking led to a marked improvement in mood, attention, fatigue and aerobic fitness.
The participants also reported better motor function skills.
In other health news, a new study out of Cornell University finds people who frequently use facebook are more likely to have food aversions.
They base these results off surveys of more than 1,000 moms who were asked about their feelings on high fructose corn syrup.
They found those who feared certain foods get most of their food facts from facebook, twitter, blogs and friends.
The researchers say many of these posts are based on misconceptions and are amplified by the poster's need to validate their beliefs.
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