Naltrexone

Naltrexone blocks opioid receptors that are involved in the rewarding effects of drinking and the craving for alcohol. Naltrexone reduces relapse to heavy drinking, defined as four or more drinks per day for women and five or more for men. Naltrexone cuts relapse risk during the first 3 months by about 36 percent but is less effective in helping patients maintain abstinence. Acamprosate or Campral® acts on the gamma-aminobutyric acid and glutamate neurotransmitter systems and reduces symptoms of protracted withdrawal, such as insomnia, anxiety, restlessness and dysphoria. Studies show that acamprosate helps dependent drinkers maintain abstinence for several weeks or months and may be very helpful for patients with severe dependence.

Cortisone

If a pimple is large and does not react to certain acne treatments, a dermatologist may administer an injection of cortisone directly into the lesion, which will usually reduce redness and inflammation almost immediately. This has the effect of flattening the pimple, thereby making it easier to cover up with makeup, and can aid in the healing process. Side effects of cortisone are minimal, but may include a temporary whitening of the skin around the injection point; and occasionally a small indent, or depression, in the skin forms, which usually fills out over time. Cortisone treatment methods also carry much smaller risks of scarring than surgical removal.

Consumer Driven Health Care

Defined narrowly, consumer driven health care refers to health insurance plans that allow members to use personal Health Savings Accounts, Health Reimbursement Arrangements, or similar medical payment products to pay routine health care expenses directly, while a high-deductible health insurance policy protects them from catastrophic medical expenses. High-deductible policies cost less, but the user pays routine medical claims using a pre-funded spending account, often with a special debit card provided by a bank or insurance plan. If the balance on this account runs out, the user then pays claims just like under a regular deductible. Users keep any unused balance or "rollover" at the end of the year to increase future balances, or to invest for future expenses. This system of health care is consumer driven health care because of routine claims using a consumer-controlled account versus a fixed health insurance benefit. That gives patients greater control over their own health budgets. In the consumer-driven model, consumers occupy the primary decision-making role regarding the health care they receive. Consumer driven health care received a boost in the U.S. in 2003, with passage of federal legislation providing tax incentives to those who choose such plans. Proponents argue that most Americans will pay less for health care in the long haul under consumer drive not only because their monthly premiums will be lower, but also because it increases free-market variables in the health care system, fostering competition, which in turn lowers prices and stimulates improvements in service.The Medicare Prescription Drug Improvement and Modernization Act includes provisions to stimulate the popularity of these plans. The law expanded medical savings accounts, renaming them Health Savings Accounts and created tax incentives to encourage adoption of high-deductible health plans. Banks were empowered to create accounts, which deliver tax-free interest to the holders, who can then withdraw money tax free to pay for qualified health care expenditures. To qualify for an HSA, the purchaser must also have a qualifying high-deductible health insurance plan. Participants contribute more to the savings account than would be required to fulfill their annual deductible, and any unused portions of the account accrue without tax penalty so long as the funds are only for qualified medical expenses.

What Is Sleep?

For a long time, people considered sleep a uniform block of time when a person was not awake. Thanks to sleep studies done over the past several decades, people now know that sleep has distinct stages that cycle throughout the night in predictable patterns. How well rested a person is and how well a person functions depend not just on the total sleep time but on how much of the various stages of sleep a person gets each night.
The brain stays active throughout sleep and each stage of sleep appears as a distinctive pattern of electrical activity known as brain waves.
Sleep occurs in two basic types: rapid eye movement (REM) sleep and non-REM sleep (with four different stages). (See "Types of Sleep"). Typically, sleep begins with non-REM sleep. In stage 1 non-REM sleep, a person sleeps lightly and wakes easily by noises or other disturbances. During this first stage of sleep, the eyes move slowly and muscle activity slows. A person then enters stage 2 non-REM sleep, when eye movements stop. The brain shows a distinctive pattern of slower brain waves with occasional bursts of rapid waves.
When a person progresses into stage 3 non-REM sleep, brain waves become even slower; although brain waves will still occur in smaller, faster waves. By stage 4 non-REM sleep, the brain produces extremely slow waves almost exclusively. In stages 3 and 4, the person is in deep sleep, during which it is very difficult to wake up. Children who wet the bed or sleep walk tend to do so during stages 3 or 4 of non-REM sleep. Deep sleep is the "restorative" part of sleep that is necessary for feeling well rested and energetic during the day.

Types of Sleep

During REM sleep, the eyes move rapidly in various directions, even though the eyelids remain closed. Breathing also becomes more rapid, irregular and shallow and the heart rate and blood pressure increase. Dreaming typically occurs during REM sleep. During this type of sleep, arm and leg muscles feel tem­porarily paralyzed so that a person cannot "act out" any dreams that he or she may be having.
The first period of REM sleep people experience usually occurs about an hour to an hour and a half after falling asleep. After that, the sleep stages repeat themselves continuously during sleep. As the night progresses, REM sleep time becomes longer, while time spent in non-REM sleep stages 3 and 4 becomes shorter. By morning, nearly all sleep time occurs in stages 1 and 2 of non-REM sleep and in REM sleep. If something disrupts REM sleep during one night, REM sleep time is typically longer than normal in subsequent nights. Overall, almost one-half of total sleep time occurs as stages 1 and 2 non-REM sleep and about one-fifth each as deep sleep (stages 3 and 4 of non-REM sleep) and REM sleep. In contrast, infants spend half or more of their total sleep time in REM sleep. Gradually, as infants mature, the percentage of total sleep time that is REM progressively decreases to reach the one-fifth level typical of later childhood and adulthood.
Doctors do not fully understand why people dream and why REM sleep is so important. Sleep specialists know that REM sleep stimulates the brain regions used in learning and the laying down of memories. Animal studies suggest that dreams may reflect the brain sorting and selectively storing important new information acquired during wake time. While the brain processes this information, the brain might also revisit scenes from the day while pulling up older memories. This process may explain why childhood memories can be interspersed with events that are more recent.