As days shorten toward Christmas, try to make time for your activities during daylight hours. Morning sunlight is especially powerful for boosting alertness and regulating mood, so consider taking a sunrise jog or a short walk on your way to work.
If you’re an owl and early morning activities aren’t for you, try to go for a walk during lunchtime. The combination of fresh, chilly air, gentle movement, and exposure to natural light will energize your body, kick-start your metabolism, and provide a dose of vitamin D — essential for a strong immune system and mental sharpness.