Why exercise is good for you

A new study suggests that “vigorous” exercise may be linked to an improved chance of getting pregnant, but that more gentle exercise doesn’t seem to make the same difference. So, what counts as “vigorous”? Apparently that’s exercise like jogging, running, football or aerobics which leaves you out of breath, and you have to do more than four hours a week!

You can read more about it on the NHS Choices website – and the results are interesting. If you are obese, the vigorous exercise thing doesn’t work, but instead more moderate exercise such as walking does. As NHS Choices points out, assessing how likely it is that these results are actually widely applicable and correct can be difficult as the results were slightly odd. It isn’t clear why exercise only counts if you do more than four hours a week, or why walking makes a difference to obese or overweight women but not to any others. It is also not clear what they women ate, or whether their weight changed during the study as these factors could make a difference – as could any existing fertility problems so it may be that one of these other factors was in fact responsible.

It does, however, add to the growing body of evidence that keeping active is a good thing!

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