Unfortunately, many cyclists are so struck with the euphoria of having conquered a hill that they immediately treat themselves to a flat-out zip down a steep, unfamiliar road. Approach a long descent with a mixture of joy and caution. Before starting down, check brakes, cables, hub quick releases, tires, and handlebar stems. A malfunction of any one of these components could result in a serious accident. If it is chilly, you may want to add a layer of clothing.
Reduced exertion means less body heat being produced.
Again, get well over on the side of the road or trail if you decide to stop. Gravel roads require slow, steady riding. On thick patches of gravel, a slightly increased cadence in a lower gear will give you better stability. Keep your hands well apart on the handlebars, and your eyes trained on the road surface ahead. Steer straight through patches of gravel, and avoid quick steering inputs.