The average typing speed is 38-40 words per minute (wpm) for adults  in a professional working environment (despite many incorrect  reports on the web that it is 50-60 wpm).
Chronic Health Effects The following chronic (long-term) health effects can occur at some time after exposure to Mica and can last for months or years: Cancer Hazard * Some Silicas have been shown to cause cancer in animals. The risk of cancer in humans from Mica is unclear at this time.
What is a TCA Peel? Having been used for more than 20 years, the TCA peel is a non-toxic chemical peel. TCA stands for trichloroacetic acid which is considered a relative of vinegar. This particular type of chemical peel is considered to be one of the strongest available, with a strength in the range of 5% and 50%.hat is a TCA Peel? Having been used for more than 20 years, the TCA peel is a non-toxic chemical peel. TCA stands for trichloroacetic acid which is considered a relative of vinegar. This particular type of chemical peel is considered to be one of the strongest available, with a strength in the range of 5% and 50%.