Nicotine

Nicotine is a powerful drug that is a physical addiction on par with cocaine. As with any chemical dependency, there can be both physical and psychological addictions that develop, serving to promote addiction. The most common forms of nicotine addiction are smoking and using chewing tobacco. When consumed, the user feels the effects of these products within 10 seconds as the nicotine enters into the blood stream and reaches the brain. However, as soon as a user ceases nicotine use, the effects can wear off quickly. The body expels over half of the nicotine in it in a little as 60 minutes. This leaves individuals addicted to nicotine craving another cigarette as withdrawal symptoms like irritability, agitation, anxiety, headache and hunger set in. Chemicals in the brain, which are "neurotransmitters," are responsible for regulating how the mind thinks and feel. Once nicotine is present in the body, it alters the natural state of chemical balance (known as homeostasis) in the brain and the body requires a constant intake of nicotine in order to feel normal. Nicotine creates a physical addiction by primarily affecting the levels of three neurotransmitters: acetylcholine, dopamine and glutamate. Nicotine increases levels of acetylcholine that make nicotine users more alert and temporarily heightens concentration ability. When natural acetylcholine levels decrease, users need to smoke, chew or otherwise introduce nicotine to the system in order to rebalance the levels of acetylcholine in the brain. Additionally, nicotine has an extremely short half-life, requiring repeated intake in order to stave off withdrawal. Smoking increases the level of dopamine in the body, which stimulates reward centers in the brain. This process reinforces the smoking behavior, so that each cigarette makes smokers desire yet another. In addition, habitual intake can trigger addiction, as the reward centers of the brain come to associate the act of smoking or chewing with pleasure and reduced tension. Glutamate is responsible for creating and storing memories in the brain. Each time a nicotine dependent individual smokes or chews, the sense of alertness (from the acetylcholine) and the feeling of pleasure (from the dopamine) reinforce the desire for continued nicotine consumption. The two primary signs of nicotine addiction are the habitual use of nicotine products and experiencing withdrawal when use ends. Other signs of nicotine addiction include possession of cigarettes or copious amounts of lighters, ashtrays, cups for spitting chewing tobacco residue into or pipes and tobacco pouches. Nicotine addicted individuals also tend to display stained teeth, gums and fingers, as well as signs of premature wrinkling due to the drying out of the skin and lack of oxygen the skin receives.

Treatment Gap

The treatment gap is massive among those who need treatment for a substance use disorder and do not receive it. In 2007, 23.2 million people aged 12 or older required treatment for an illicit drug or alcohol use problem, but only 3.9 million received treatment at a specialty substance abuse facility. Reducing this gap requires a multipronged approach. Strategies include increasing access to effective treatment, achieving insurance parity, and reducing stigmas and raising awareness among both patients and health care professionals.

Table Stakes Rules

All casinos and many home games play poker by what are called table stakes rules, which state that each player starts each deal with a certain stake, and plays that deal with that stake. A player may not remove money from the table or add money from his or her pocket during the play of a hand. In essence, table stakes rules creates a maximum and a minimum buy-in amount for cash game poker as well as rules for adding and removing the stake from play. A player also may not take a portion of their money or stake off the table, unless they opt to leave the game and remove their entire stake from play. Players are not allowed to hide or misrepresent the amount of their stake from other players and must truthfully disclose the amount when asked.

Common among inexperienced players is the act of "going south" after winning a big pot, which is to take a portion of your stake out of play, often as an attempt to hedge one's risk after a win. This is also known as "ratholing" or "reducing" and, while totally permissible in most other casino games, is not permitted in poker.

Table stakes are the rule in most cash poker games because it allows players with vastly different bankrolls a reasonable amount of protection when playing with one another. They are usually set in relation to the blinds. For example, in a $1/2 No Limit cash game, the minimum stake is often set at $40 while maximum stake is often set at $200, or 20 and 100 big blinds respectively.

This also requires some special rules to handle the case when a player is faced with a bet that he cannot call with his available stake.

Dealing

In games where cards are distributed among players, the deal is the act of that distribution.

The dealer takes all of the cards in the pack, arranges them so that they are in a uniform stack, and shuffles them. In strict play, the dealer then offers the deck to the previous player in the sense of the game direction for cutting. If the deal is clockwise, this is the player to the dealer's right; if counterclockwise, it is the player to the dealer's left. The invitation to cut is made by placing the pack, face downward, on the table near the player who is to cut: who then lifts the upper portion of the pack clear of the lower portion and places it alongside. Normally the two portions have about equal size. Strict rules often indicate that each portion must contain a certain minimum number of cards, such as three or five. The formerly lower portion is then replaced on top of the formerly upper portion. Instead of cutting, one may also knock on the deck to indicate that on trusts the dealer to have shuffled fairly.

The actual deal distribution of cards is done in the direction of play, beginning with eldest hand. The dealer holds the pack, face down, in one hand, and removes cards from the top of it with his or her other hand to distribute to the players, placing them face down on the table in front of the players to whom they are dealt. The cards may be dealt one at a time, or in batches of more than one card; and all or a determined amount of cards are dealt out. The undealt cards, if any, are left face down in the middle of the table, forming the stock also called talon, widow or skat.

Throughout the shuffle, cut, and deal, the dealer should prevent the players from seeing the faces of any of the cards. The players should not try to see any of the faces. Should a player accidentally see a card, other than one's own, proper etiquette would be to admit this. It is also dishonest to try to see cards as they are dealt, or to take advantage of having seen a card. Should a card accidentally become exposed, visible to all, then, normally, any player can demand a redeal all the cards are gathered up, and the shuffle, cut, and deal are repeated.

When the deal is complete, all players pick up their cards, or 'hand', and hold them in such a way that the faces can be seen by the holder of the cards but not the other players, or vice versa depending on the game. It is helpful to fan one's cards out so that if they have corner indices all their values can be seen at once. In most games, it is also useful to sort one's hand, rearranging the cards in a way appropriate to the game. For example, in a trick-taking game it may be easier to have all one's cards of the same suit together, whereas in a rummy game one might sort them by rank or by potential combinations.