When a clock gene is switched on, it directs the cell to produce proteins, which eventually trigger a signal that switches the gene off.

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Our indicators did trigger a buy signal in mid-October, and the Dow is up 16.5% from its early October low.

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None of these conditions, an overbought market technically, a high level of bullish investor sentiment, a high level of insider selling, can trigger a sell signal.

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So I suggest simply following the charts and letting the indicators tell us when the downside momentum and money flow reverses to the upside enough to trigger our next buy signal.

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Prof Edgerton speculated that "we are activating the spinal cord to a critical level" close to the level which would trigger movement, and a small signal from "the brain pushes it over" leading to movement.

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On the other hand, be alert for eating patterns and beliefs that may signal unhealthy behavior, as well as peer pressure that may trigger eating disorders.

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