5. Put down the sugar

Going for healthy food instead of sugary snacks saves you from hunger attacks and overeating according to fitness professional and speaker Lorraine Bosse-Smith. The sugar is a known immune suppressor, meaning you are likely to get ill when you eat a lot of sweets. Lastly, adding glutamine to your daily routine by downing a glass of water with mixing one teaspoon of the powder once a day. She advises adding glutamine supplement to your daily routine since as we get old; there is a substantial decrease in the production of glutamine that helps in boosting the immune system.