Winter in the northern hemisphere brings unfavourable weather conditions like freezing rain, snow, and cold temperatures. In such situations, probably most of us like to stay indoors with our heaters on and cozy sweaters. During winters, days get shorter and nights get longer. Nature does not give us enough time to stay outdoors. Staying indoors for a long time can have changes in your physical activity, and reduce your exposure to vitamin D from sunlight. Some research suggests that winter weather might reduce our energy, mood, and affect active travelling. Perhaps, it may also increase sitting and sleeping time. These changes lead to our physical inactivity in winters (1).