The more uncomfortable the weather becomes, the grittier you’ll get by training in it. ❄️💪 Here are 5 reasons why you should exercise outside this winter — 1️⃣ Your body performs better in colder weather 2️⃣ You burn more calories 3️⃣ You’ll boost your immune system 4️⃣ It’s a great way to get Vitamin D 5️⃣ You’ll feel better mentally after a winter workout 🎥 @petraarvelatrainer #Spartan #DoToughShit