I'm sleepy right now, so my alarm should be set forâ¦. Getting a good night's sleep is about more than simply going to bed early â it's about waking up at the right time too. Using a formula based on the body's natural rhythms, the Sleep Calculator will work out the best time for you to rise or go to sleep. And that means you can look forward to feeling fresh and alert â¦ every morning.
Hives, also known as urticaria, are itchy, raised welts that are found on the skin. They are usually red, pink, or flesh-colored, and sometimes they sting or hurt. In most cases, hives are caused by an allergic reaction to a medication or food or a reaction to an irritant in the environment.
The causes of hives can generally fall into one of three categories: Idiopathic - There is no known cause. Immunological - Caused by a change in your immune system.