article_snippet: Exercising is of course a great way to get into shape, but Exercising also increases the number of natural killer cells in our bodies that fight off infection.
article_snippet: Exercising is of course a great way to get into shape, but Exercising also increases the number of natural killer cells in our bodies that fight off infection .
article_snippet: Sleep is another crucial step to boosting the immune system; ideally around six to eight hours of good quality sleep every night.
article_snippet: Sleep is another crucial step to boosting the immune system; ideally around six to eight hours of good quality sleep every night .