# Substances

- [Caffeine](/health/in/substances/caffeine.md)
- [Alcohol](/health/in/substances/alcohol.md)
- [Sugar](/health/in/substances/sugar.md)
- [Illicit](/health/in/substances/illicit.md)
- [Psychedelics](/health/in/substances/illicit/psychedelics.md)
- [Psilocybin / Psilocin](/health/in/substances/illicit/psychedelics/psilocybin-psilocin.md)
