1. It is really not a surprise as we all tend to try to do "everything" such as shop for gifts, bake and make special holiday treats, go to holiday parties, prepare a special meal. This can mean skimping on rest and exercise since we figure out that we can rest and exercise after the holidays. This hectic schedule is a "stress producing" situation and the lack of sleep and exercise both lower your immune system's ability to handle the "stresses" of the holiday season. Be realistic on what you reasonably manage, delegate more, and if you typically exercise for 45 minutes, cutting the time to 20-30 minutes is still better than no exercise at all. Sometimes keeping things simple means more time to spend with your family and friends.
2. We all get bombarded with chocolates, sweets, special treats during the holidays from friends and families and from your own kitchen if you like to make holiday treats to give away. You can indulge a little on the sweets but according to one study, too much sugar can seriously impair your immune system's ability to fight bacteria, virus, and parasites. One study showed that eating sugar can impair your immune system by as much as 50% for 5 hours so if you eat sugar at every meal, your immunity is functioning at half capacity almost all day. You can see that if you are also not getting enough sleep or rest and not exercising, combined with higher than normal intake of sugar, you have a recipe for not being able to fight off a "bug" so easily.
3. Get hydrated and be sure to maintain your vitamins and supplements. It is quite easy to go through the day and realize at 8pm that you only had 1-2 glasses of water all day. Add fresh lemons or cucumbers to a pitcher of water and drink it throughout the day to maintain a healthy PH and keep you healthy. Don't forget to take your Vitamin C and D or other natural supplements to enhance your immune systems like ImmPower as well.