The ticking ‘household bomb’

After decades of fretting about population explosion, scientists are pointing to a long-term hidden global menace. The household. More specifically, the household explosion.

Plastic shopping bags make a fine diesel fuel

"You can get only 50 to 55 percent fuel from the distillation of petroleum crude oil," Sharma said. "But since this plastic is made from petroleum in the first place, we can recover almost 80 percent fuel from it through distillation."

How your memory rewrites the past

Your memory is a wily time traveller, plucking fragments of the present and inserting them into the past, reports a new Northwestern Medicine® study. In terms of accuracy, it's no video camera. Rather, the memory rewrites the past with current information, updating your recollections with new experiences.

Is high blood pressure the new HIV epidemic?

The response of most governments and international aid agencies to high blood pressure, or hypertension, is little better than the reaction to HIV/AIDS 20 years ago – too little too late.

Whether you lose or gain weight depends on weekday

There are sleep cycles and there are also weight loss cycles. Almost everyone loses weight on weekdays and gains weight on weekends. What separates the slim from the heavy isn’t how much more they gain on weekends. It’s how much they lose during the weekdays.