Aside from heat stroke and dehydration, there is yet another dangerous effect of the sun. This is the common sunburn. Many of us already know what this is and have actually experienced it before. And if you have, you know that it's no fun. Sunburns happen when your skin gets too much exposure to the sun. If you sit out on a sunny beach for hours with no sun protection, then you'll likely get a sunburn. The effects of most sunburns are an itching, burning sensation and peeling skin. But while most sunburns make you itch and peel, a bad sunburn may have even worse effects. If you get a very bad sunburn, you may increase your risk of getting skin cancer. So, to avoid getting a sunburn, it is important to protect yourself in the sun. Wearing a hat or long sleeves, seeking shade under an umbrella, and applying sun screen are all good ways to do this.