BODY DEFENSE

1. https://bestlifeonline.com/amazing-things-your-body-does/
2. https://www.msdmanuals.com/home/infections/biology-of-infectious-disease/defenses-against-infection
3. https://www.scientificamerican.com/article/experts-why-we-itch-and-scratch/#:
4. https://www.bbc.co.uk/bitesize/guides/z2kvw6f/revision/1
5. https://vantagepointrecovery.com/psychological-trauma-affects-brain/
6. https://www.aao.org/eye-health/tips-prevention/facts-about-tears
7. https://www.indiatimes.com/health/healthyliving/how-your-body-protects-itself-242221.html