Chemically Freezing Sperm Tails Could Be the Key to a Reversible Male Contraceptive

As sperm swim they transform chemical energy into motion, the way a car’s engine uses gas to propel you down the road. Like that engine, the process is complicated—if just one part stops working, the whole system can grind to a halt. This idea might lead to a contraceptive for men that’s reversible. »10/01/15 6:30pm

Struck By a Duck: The Strangest Codes in the US Medical Billing System 

When you go to the doctor, there’s a medical code that determines how your treatment gets billed. Getting treated for urban rabies? Well, that’s distinct from woods-based sylvatic rabies, and your invoice will reflect that. Until today, the system in the US was the same one we used in the 1970s. But there’s a new… »10/01/15 3:30pm

How Starving Cancer Cells of Sugar Could Be the Best Way to Attack Them

All the cells in our bodies are programmed to die. As they get older, our cells accumulate toxic molecules that make them sick. In response, they eventually break down and die, clearing the way for new, healthy cells to grow. This “programmed cell death” is a natural and essential part of our wellbeing. Every day,… »9/24/15 5:30am