You cut back on sleep to get everything done

You’re up at the crack of dawn to rush to the best sales and then stay up late to wrap gifts or clink glasses at parties. But the holidays shouldn’t mean kissing your good night’s sleep good-bye.

What you should do: Skimping on sleep can leave you grumpy and stressed, throw off your diet, and increase your risk of colds, depression, and car accidents. Make a good night’s sleep a priority.