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| SAD (Seasonal Affective Disorder) |
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| A physiological form of clinical depression, SAD (discovered and named by Dr. Normal Rosenthal, senior researcher at the National Institute of Mental Health) is caused by light deprivation brought on by winter's shortened days.Symptoms, which include sleepiness, lethargy, irritability and loss of appetite, generally appear in the fall and diminish in the spring. SAD suffers are affected not only by the season by by the amount of light in their immediate environment.Treatment involves sitting 18 inches from a specially designed light box to obtain a daily dose of light. | | sodium bromide |
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| Sodium Bromide can cause headaches, confusion, and symptoms of mental illness. | | sodium carbonate |
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| A salt used in cleaning products. It is be very irritating to the eyes. | | sodium chloride |
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| Sodium Chloride is table salt. It is used in cleaning products, and is be very irritating to the eyes. | | sodium tri-poly phosphate |
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| A naturally occurring mineral is used for water softening. | | solvent |
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| Any liquid (such as water or alcohol) which dispenses or dissolve another substance. | | Stoddard solvent |
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| Stoddard solvents are petroleum distillates. They are eye and mucous membrane irritants found in floor and auto wax, abrasives, and all-purpose cleaners. They can also cause headaches, confusion, lack of concentration, and symptoms of mental illness. | | styrene |
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| Plastics made from styrene (also known as cinnamene, cinnamol, phenylethylene, and vinyl benzene) are used in hundreds of products, such as ink, kitchen utensils, food wrap, PVC, tires, auto parts, Styrofoam, synthetic rubber, gasoline, and asphalt. All of these products can emit styrene vapor, and there is some evidence that food stored in styrene containers can become contaminated. Styrene has been found in some rivers where industrial wastes have been dumped. Styrene is irritating to the mucous membranes and eyes, and is a possible carcinogen. High doses can cause death due to to respiratory paralysis. Styrene plastics degrade very slowly in the environment, so they produce a huge volume of waste. | | sustainably harvested |
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| Usually used in reference to wood (though it can apply to any plant material), sustainable harvesting means that the forest has been well-managed, according to the criteria of established wood certifiers, such as the Forest Stewardship Council. |
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