For Meg Caldwell, it was part of the background noise of college life. But it didn’t stay that way. Soon, the vape shops she frequented started selling something else: small silver canisters of nitrous oxide or laughing gas.

Two pigeons on board a Delta flight, scheduled to fly from Madison to Minneapolis, caused chaos and delay. The Delta Flight 2348 with 119 passengers and five crew members on board was all set to take off when a bird was spotted flapping around.

People with autism could be four times more likely to develop Parkinson’s disease later in life, according to a study among Swedish population.