Optimistic or Motivated?

Yesterday I read an article about how washing your hand can make you more optimistic but not more motivated. This reminds me to how a poster to wash your hand at the election booth can affect which kind of political party or politician you vote for. These things are amusing to me, and though the article doesn’t say anything about what causes it, I can’t help but to correlate it with the chemicals in the brain. Baca lebih lanjut