This presentation summarizes 4 life hacks from the book "Practical Life Hacking" including taking potassium and magnesium to cure hangovers, using an ice pack on the testicles to boost testosterone, placing ice on the forehead and a heat pad on the neck to cure headaches, and swishing peanut butter in the mouth to get rid of toothpaste aftertaste. A bonus hack recommends eating a banana 30 minutes before stressful events to reduce anxiety.