You can yawn for many reasons; a yawn often happens when you are bored or tired. While it was once believed that you yawned when you needed more oxygen, that theory has been disproved. Everyone yawns throughout the day; however, if yawning becomes excessive, it may be indicative of a serious medical problem.

Finding the best mattress for your child can be hard work. In fact, there are so many styles, makes and models of mattresses that even organizations such as Consumer Reports and ConsumerSearch.com won’t make specific recommendations.

Your diet and nutrition can impact your body in ways that you may not have thought possible. Certain vitamins and minerals help your muscles move, keep your bones strong and regulate your body’s water supply.

If you're living with a snoring roommate, your sleep may be compromised. If you've tried earplugs, putting a pillow over your head, and sleeping in the living room, you may feel that your only other option is moving out. Instead, open up the communication and discuss the problem with your roommate.

Sleep apnea is a disorder that causes you to stop breathing repeatedly during sleep. An estimated 18 million Americans have sleep apnea, according to the National Sleep Foundation -- a daunting statistic since in addition to reducing your sleep quality, it raises your risk for heart attack, stroke and heart failure.

Snoring not only keeps you and your spouse up at night — it can be dangerous to your health. Loud snoring can increase your daytime fatigue and cause you to stop breathing as you sleep, which can affect your heart. If you snore with your mouth closed, this can indicate a problem with your tongue positioning.

Sleep apnea can be treated using devices that provide continuous positive airway pressure (CPAP), which helps keep the airway open. One type of CPAP machine is the Remstar Plus M Series, which can be hooked up to a humidifier and also has certain settings already programmed into it.

Hemorrhoids are inflamed and swollen blood vessels in the rectum and anus. This painful condition can occur inside and outside of the body. Symptoms of external hemorrhoids include pain, itching and rectal bleeding.

It is common to experience weaknesses and discomfort in your legs at night. This causes the desire to constantly stretch and test your legs, which inhibits a restful sleep. Several issues can lead to these symptoms.

Adenosine is a chemical in your brain and body that belongs to a class of substances called neurotransmitters. These substances support basic nervous system communication by carrying “messages” across the gaps between individual nerve cells.

According to a 2007 review published in the journal "Sleep," almost 20 million children in the U.S. received medical attention for sleep difficulties between the years 1993 and 2004. This treatment often included prescriptions for barbiturate and benzodiazepine drugs.

Melatonin is a hormone made by your brain that helps regulate your body's internal clock. Your levels of melatonin increase at night and decrease during the day. Some people find that taking melatonin supplements helps them to sleep better, especially if they are suffering from jet lag.