Muscle spasms or twitches are common; you might experience one after strenuous exercise, long periods of standing or even while resting. Your muscles require magnesium and other minerals to help them contract and relax. Not getting enough of these nutrients in your diet can lead to muscle spasms.

Cigarette smoking and other types of tobacco smoke are responsible for approximately 438,000 premature deaths in the United States every year, the National Cancer Institute reports.

The first year of a tobacco use habit holds risks for immediate health problems and the likelihood of an early death. Many people begin smoking or return to smoking with the aim of quitting before too much damage is done.

Many pregnant women question the safety and efficacy of taking herbal supplements during pregnancy. Cinnamon bark and cinnamon oil have been used for seasoning and medicinal purposes for centuries.

Originally synthesized by a Japanese chemist in 1919, methamphetamine has evolved into a highly addictive, cheap and easy-to-make drug of choice for hundreds of thousands of Americans. Far more potent than the original meth, today’s meth usage supplies longer highs and can be more appealing than cocaine.

Maggots are the worm-like larvae of flies. According to the textbook, "Biology: Life on Earth with Physiology," the term is most commonly applied to housefly and blowfly larvae.

Drug abuse occurs when people being using drugs for one reason or another and their use develops into an intense desire and need for the substance. This need and desire outweighs the person’s need for need for success in his relationship, career or academics.

Herbal preparations have been used for health and enjoyment since the Neolithic times. While many herbal treatments are administered through means of food, drink or compresses, some components found in herbs are more accessible through smoking or vaporizing the herb.

Cold smoking aids in preserving bacon, and serves as part of the curing process. For centuries, curing and smoking meats preserved them prior to refrigeration. Cold-smoking takes longer than hot smoking, because it's performed at a low temperature.

Lysine is an essential amino acid that your body cannot produce and that you must acquire through food or supplementation. Lysine helps form many different enzymes and is needed in several key biochemical reactions, such as proper cell growth and lipolysis, or the conversion of fat into energy.

Concentrated lemon juice is made by removing water from lemon juice. It is still sold in liquid form but is typically more sour than regular or freshly squeezed lemon juice, so you don't need to use very much to get a tart lemon taste.

Anorexia nervosa is a type of eating disorder that involves dieting or starving oneself obsessively to avoid gaining weight. Anorexia can be a lifelong, chronic condition, but can also become a problem during pregnancy.