1. Hydration and nutrition. Have extra snacks and water, and keep them handy.
2.Proper clothing. Remember that “cotton kills.” When you might run into rain or snow, it's best to wear synthetic materials or wool, which, unlike cotton, can keep you warm even when wet.
The person in the advertisement might be an actor, and she should be hesitant about the product. Always make sure you ask your doctor before using a product.