A possible concise summary is:
The speaker tries a period cramp simulator on himself and his friends to see how women feel every month. He attaches electrodes to their stomachs and increases the intensity from one to ten. He records their reactions and comments as they experience the pain. He also asks them questions about periods and women. He ends the video by saying he respects women and that five is enough.
Here are the key facts extracted from the text:
1. A period cramp simulator was used in an experiment.
2. The simulator's effects were tested on various individuals.
3. Participants experienced different levels of simulated cramp intensity.
4. Reactions to the simulator varied among the participants.
5. Some participants expressed a newfound respect for women's experiences with periods after the simulation.
Please note that due to the nature of the text, some interpretations were necessary to extract these facts.