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People who work 11-plus hours a day are two-and-a-half times more likely to become depressed than those clock out after seven or eight; Also, ultrasounds could be the key to birth control for men; And, a special "What the Health" segment on babies.

By Meredith Wadman of Nature magazine The boy was perhaps seven or eight, although he could have been older: among other things, the disease that afflicts him stunts growth.

In-home monitors detect behavioral patterns and predict medical emergencies. Simple hardware combined with behavioral mathematics is helping seniors live free of nursing homes. Intel and General Electric's joint healthcare product, QuietCare , uses infrared sensors, like those used for motion-sensing light switches, to monitor patients as they move throughout their home and alert medical staff to deviant behavior that suggests a medical threat.