Islamabad  - Exercise alone is not always enough to shed weight as human bodies adapt to higher activity levels and do not burn extra calories even if we exercise more, new study said.

According to the researchers, it’s time to stop assuming that more physical activity always means more calories. There might be a “sweet spot” for physical activity — too little makes unhealthy but too much makes big adjustments in order to adapt. “Exercise is really important for your health. That’s the first thing I mention to anyone asking about the implications of this work for exercise.

There is tons of evidence that exercise is important for keeping our bodies and minds healthy and this work does nothing to change that message,” said researcher Herman Pontzer from City University of New York in a study published in the journal Current Biology. Researchers carried out a study to measure the daily energy expenditure and activity levels of more than 300 men and women over the course of a week.

The research showed a weak but measurable effect of physical activity on daily energy expenditure. But, further analysis showed that this pattern only held among subjects on the lower half of the physical activity spectrum.

The results suggest, it’s time to rethink the effect of physical activity on daily energy expenditure. They are also a reminder of the importance of diet and exercise in supporting weight loss goals, the researchers said.