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Adult ADHD leads to daily challenges, involves nuanced symptoms, and requires careful diagnosis and management.

The Fair Labor Standards Act of 1938 significantly reformed child labor in the U.S., setting age limits and work hour restrictions.

Galaxies are large systems of stars, gas, dust, and dark matter, existing in various sizes and classified by structure into spiral, elliptical, and irregular types.

The Marfa lights, seen since 1883 in Texas, blend historical lore and scientific studies yet remain an unsolved mystery.

Prokaryotic cells lack a nucleus and organelles, are smaller, and have simpler DNA than eukaryotic cells, which have complex organelles and structures.

Pennsylvania, founded by William Penn in 1681 as a Quaker haven, played pivotal roles in U.S. history, including the signing of major national documents and the Battle of Gettysburg.

The tallest redwood tree, named Hyperion, stands at approximately 379.7 feet (115.7 meters). It is located in Redwood National Park, California, USA.

Cats can distinguish their names through association and positive reinforcement, a sign of their complex cognitive abilities.

Egyptian hieroglyphics evolved from proto-writing systems since 3000 BC, influenced by Mesopotamian concepts.

Nausea after conception is a common early sign of pregnancy, often accompanying other symptoms like fatigue and mood swings. Its onset and intensity can vary widely among individuals.