Three weeks til Christmas! As your calendar gets busier and stress levels build up, remember these 10 tips to survive the holiday season. This is a revised version of last year’s seasonal article How to stay healthy during the holidays. 1. Healthy habits Keep your habits as untouched as possible. Eat your usual (hopefully healthy) diet, do your regular physical activities, keep meditating if you normally do it. Make sure you sleep well; poor sleep leads to hormonal imbalances and poor decision making when it comes to food choices. A healthy routine is the best way to minimise the impact of occasional deviations from the plan. 2. RSVP honestly Say…