Certain addictive chemicals are dopamine agonists (meaning that they increase dopamine levels in the body), including heroin, alcohol, nicotine, marijuana and cocaine. Cocaine and amphetamines prevent dopamine reuptake, which results in too much dopamine being left in the synapses between neurons.
For tourists, Harlem offers a ton of historic landmarks such as the Apollo Theater, Museum of New York, and Sylvia's Soul Food. This is one of the centers of African-American culture going back to the early 20th century and even a simple stroll down Astor Row (135th Street) can be educational.f you walk 3 blocks you are on 125th street where the famed Apollo Theater resides, amonst a big shopping area. There is always a high presence of police in the area which tends to make you feel safe. 122nd street runs from east to west, starting at Broadway and ending at Second avenue.
In fact I think the Mayan Riveria is one of the safest places in the world. The local population is very friendly. Mexico is a large country and their are dangerous areas in the country. Look on the US State Department webpage and it shows the Yucatan as safe.ut don't just take our word for it. Here are some recent reviews from our clients, followed by some links to interesting online articles on safety in Mexico and the Riviera Maya in particular. Mariann Bauer-March 22, 2012 - Akumal-The people in Akumal are so friendly.