# Love - There are different types of love. - Sternberg's triangle of love - Elements - _Intimacy_: internet chat room (intimate details are shared) - _Passion_ - _Commitment_ - Forms: - Romantic Love - Companionate Love - Fatuous Love - Consummate Love  ## Origin - Hypothesis about human evolution of upright walking - Development of frontal lobe - Walking upright - Use of tools - The fossil of Lucy has no developed frontal lobe, which indicates that early human didn't stand up to use the tools! | Reproduction | _r_-Strategy | _k_-Strategy | | :-------------------: | :-------------: | :------------: | | Offspring (per brood) | Many | Few | | Parental care | Less | More | | Mortality | High | Low | | Body size | Small | Large | | Onset of maturity | Early | Late | | Reproduction | Once | Multiple times | | Favored environment | Unstable | Stable | | Type of species | Pioneer species | Climax species | | Population size | Variable | Stable | - Did human evolved into upright walking to carry more infants? - To take care of the infants, human must form couples. - To maintain such _commitment_, _intimacy_ and _passion_ must be put into play. (e.g. sex for non-reproductive purposes) ## Resources - From [[introduction-to-psychology|Intro to Psych.]] - [The Psychology of Love | GRCCtv](https://www.youtube.com/watch?v=iOHdZKDldIg) - [The Halo Effect - Science of Attraction | Scienceofattaction](https://www.youtube.com/watch?v=ZuometYfMTk) - [Body Language - Indicators of Interest (IOIs) | Dating Architect](https://www.youtube.com/watch?v=SBOtj1RmaUE) - [The Psychology of Love | Psychology Today](https://www.psychologytoday.com/intl/blog/handy-psychology-answers/201102/the-psychology-love) - [5 Psychological Theories of Love | VeryWell Mind](https://www.verywellmind.com/theories-of-love-2795341)