The prevailing notion that if you can walk and talk after exposure, it's safe; ignores the fact that long-term, adverse effects occur from sub-lethal exposures to toxic commercial pesticides. Toxic household insecticides create long term health hazards for dogs, cats, babies, children, and adults.
Christopher Columbus was a sailor from his teen years. He first sailed to the New World in 1492 - he was born in 1451 that would make him 41. The Queen of Spain commissioned him in 1492 and he sailed west with 3 ships and a crew of 90. October 12th 1492 he found an island in the Bahamas that he named San Salvador. He thought he reached Asia.
On August 3, 1492, Columbus set sail from Spain to find an all-water route to Asia. On October 12, more than two months later, Columbus landed on an island in the Bahamas that he called San Salvador; the natives called it Guanahani. For nearly five months, Columbus explored the Caribbean, particularly the islands of Juana (Cuba) and Hispaniola (Santo Domingo), before returning to Spain.