In combination with properly balanced nutrition and caloric intake, increased physical activity can help with weight loss.

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At the end of the study, 55% of those who had six interviews plus 30 vouchers entitling them to free leisure facilities had increased their levels of physical activity compared to 35% of those who only received the chats.

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Scientists at the Medical Research Council (MRC) at Southampton University allowed for other factors such as poor nutrition and concluded that being underweight or doing little physical activity were responsible for increased risk.

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Physical activity dropped by 40%, cigarette smoking increased by 16%, and drinking alcohol with regularity increased by 32%.

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Rather, HFCS supporters argue that obesity is as much a function of a corresponding decline in physical activity during the same period that HFCS consumption increased.

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Proponents note that the overall cost of the project would be recouped within a few decades, as the volume of tunnel freight transport activity increased, reaching an estimated 3 percent of the world's total physical cargo or 100 million tons annually.

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Significantly increased hippocampal LTP activity was only recorded in the enriched-environment mice, possibly because exploring novel objects provided both physical exercise and cognitive stimulation, researchers said.

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