Typically denoted by a letter or two, the most common amplifier classes used in consumer home audio today are Class A, A/B, D, G, and H. These classes aren’t simple grading systems, but descriptions ...

By Ellen Barry A study of more than 30,000 British adults diagnosed with attention deficit hyperactivity disorder, or A.D.H.D., found that, on average, they were dying earlier than their ...

By Dana G. Smith Do you: Cut the tags out of your clothes ... like sensitivity to small sensory annoyances (such as clothing tags) or A.D.H.D. paralysis, a type of extreme procrastination.