Mário Machado is the Founder and Chief Behavioral Science Editor at 99BrainUp. He researches and synthesizes peer-reviewed cognitive psychology, behavioral economics, and social neuroscience studies into accessible frameworks for everyday critical thinking.
Discover the focusing illusion psychology (Kahneman & Schkade, 1998): why nothing in life is as important as you think it is while you are thinking about it.
Understand the sleeper effect psychology (Carl Hovland, 1949): why messages from untrusted sources become more persuasive weeks later as source memory fades.
Explore the peak end rule psychology (Daniel Kahneman, 1993): why human memory ignores total duration and judges events by their emotional peak and ending.
Learn how the endowment effect psychology (Richard Thaler, 1980) explains why ownership doubles the perceived value of objects, ideas, and investments.