Mar 17, 2009
If you're trying to get or stay in shape, you've probably heard that walking 10,000 steps a day can do the trick. But maybe you've found that the recommendation, which the American College of Sports Medicine promoted in the 1990s and has since been widely adopted by exercise-promotion campaigns, isn't doable in your busy life — or that it doesn’t raise your heart rate enough to reduce your risk of cardiovascular disease.
Today, you've got additional guidelines to go on that may make whatever walking you do more heart-healthy. Walking 3,000 steps over 30 minutes, five days a week — or 1,000 steps for 10 minutes a day — can get your heart pumping enough to cut your risk of heart disease, according to research in the May issue of the American Journal of Preventive Medicine.
Deadline: Jul 30 2013
Reward: $100,000 USD
The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
Deadline: Jun 29 2013
Reward: $7,000 USD
The Seeker for this Challenge desires proposals for chemical methods that could rapidly degrade a dilute aqueous solution
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