People with full bladders make better decisions

According to a recent study, people with full bladders make better decisions. Dutch scientist Miriam Tuk tested her theory by asking one group of volunteers to drink five cups of water, while another group took only five small sips.

After forty minutes, Tuk asked each group several questions to test their self-control. Namely: each participant had to choose between being paid $16 after one day or $30 after one month.