What is the origin of the letters used in star classification? Why didn't astronomers use ABCD? J. HaldimanChicago, Illinois Stellar spectral types originally followed alphabetical order. But as ...

ADHD stimulants appear to work less by sharpening focus and more by waking up the brain. Brain scans revealed that these ...

The Dominion Energy Charitable Foundation recently awarded $3.5 million in grants to nonprofit organizations across multiple ...

Prescription stimulants, such as Ritalin and Adderall, are widely used to treat attention deficit hyperactivity disorder (ADHD), including in children. In the U.S., about 3.5 million children aged 3 ...