How can I stay warm and comfortable while cold weather biking?

To stay warm and comfortable while biking in cold weather, wear layers of moisture-wicking clothing, including a thermal base layer, insulating mid-layer, and windproof outer layer. Also, wear gloves, a hat, and a scarf to protect your extremities. Consider using hand and foot warmers for extra warmth. Additionally, make sure your bike is equipped with fenders and lights for safety in winter conditions.